KR20060119687A - Sound source broadcast service method and system using spread spectrum communication - Google Patents

Abstract

The present invention discloses a sound source broadcast service method and system using spread spectrum communication. According to the present invention, a radio transmission control station spreads and broadcasts a plurality of sound source data to a sound source identification code. The mobile station despreads the broadcast sound source signal using the sound source identification code of the specific sound source selected by the user to extract and reproduce the corresponding sound source data. When the reproduction is completed, the mobile station transmits the mobile station identification code and the sound source identification code to the radio wave transmission control station for charging. Further, the radio transmission control station spreads and broadcasts the advertisement data together with the sound source to the advertisement identification code. Then, the mobile station despreads the advertisement signal broadcasted by the pre-registered advertisement identification code in the advertisement reproduction mode to extract and reproduce the corresponding advertisement data. The number of times of playing advertisements is cumulatively stored in the memory of the mobile station. When the number of times of advertisement playing reaches a predetermined criterion, the sound source can be played for free.

Description

Method of music broadcasting service using spectrum spreading communication technology and System for implementing the same}

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to.

1 is a block diagram of a sound source broad service system using spread spectrum communication according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a charging process in a sound source broadcast service method using spread spectrum communication according to an embodiment of the present invention. FIG.

3 is a flowchart illustrating a process of playing an advertisement in a sound source broad service method using spread spectrum communication according to an embodiment of the present invention.

The present invention relates to a sound source service, and more particularly, to a method and system for providing a sound source broad service using spread spectrum communication.

As is well known, there are numerous sound source service sites on the wired Internet. Examples include sites like Bucks Music and Max MP3. These sites provide music services in real time streaming rather than download.

Netizens make a list of their favorite songs after accessing the site. Then, the sound source is listened to by the streaming method. The sites are in the spotlight from many netizens because they can pick and listen to only their favorite sound sources.

Controversy over copyright infringement has been continuously raised about free streaming services of music using the Internet. In other words, streaming music for free violates the rights of the music creator. As a result, a lawsuit was filed recently, and a compromise between them was derived, and the music service was converted to monthly subscription.

Another medium for listening to music is the radio. However, in the case of radio, there is a disadvantage in that only music selected by a customer, such as the Internet, cannot be selectively listened to. In other words, only the music organized by the radio station should be passively listened to. Of course, most radio programs offer subscription songs. However, there is a limit to satisfying every listener's taste individually.

The transmission of sound sources over radio waves is also subject to copyright debate. However, unlike the Internet, there is no way to find out who listened to what music. Accordingly, the problem of copyright is solved by paying copyright fees collectively at radio broadcasters. The royalties paid are usually covered by advertising costs.

Recently, as the wireless Internet service is activated and the MP3 mobile phone is commercialized, the sound source service through the wireless internet has been commercialized. However, in order to use the sound source service through the wireless Internet, there is a hassle of having to establish a wireless Internet connection first. In the actual process of using the wireless Internet service, it takes considerable time to find the service to use due to the limitation of the user interface and speed. Therefore, netizens are burdened with billing for these time-consuming minutes.

Meanwhile, the commercialization of satellite and terrestrial DMB is completed, and the service is imminent. In addition, a music channel is provided in the DMB service, and if there is a DMB receiving terminal, it is an era in which music can be heard even in a mobile situation. The music channel is expected to become a music video-oriented service like cable broadcasting. However, in the case of the sound source service by DMB, like the radio, there is still a blind spot of the passive sound source service. In addition, the music channel has a limitation in the variety of music because the service is mainly focused on the latest songs.

Therefore, the present invention can be heard anytime, anywhere, even without a wireless Internet access, a new sound source service method using a spread spectrum communication that can finance the copyright fee by accurately performing the charges for the use of the sound source And to provide a system.

In accordance with another aspect of the present invention, there is provided a sound source broadcast service method using spread spectrum communication, comprising: (a) a radio wave transmitting control station spreading and broadcasting a plurality of sound source data with different sound source identification codes maintaining mutual orthogonality; step; And (b) the mobile station despreading the broadcast sound source signal using the sound source identification code of the specific sound source selected by the user to extract and reproduce the corresponding sound source data.

According to an aspect of the present invention, in the step (a), the radio transmission control station broadcasts n sound source data at every broadcast time point repeated in a predetermined period.

According to another aspect of the present invention, in step (a), the radio transmission control station broadcasts n sound source data, divides each sound source data into a predetermined number, and broadcasts it multiple times for each broadcast time point repeated at a predetermined period. .

According to another aspect of the present invention, in step (a), the radio transmission control station broadcasts n sound source data, divides the n sound sources into a predetermined number of groups, and groups each broadcast time point repeated at a predetermined period. Not too many times broadcast.

In the present invention, the step (b) comprises: selecting a sound source using a sound source search engine; Buffering the extracted sound source data in a buffer memory; And reproducing the buffered sound source data.

Preferably, the present invention comprises the steps of: transmitting a sound source charging processing request including at least said mobile station identification code and a sound source identification code to a radio wave transmission control station after said mobile station completes reproduction of said extracted sound source data; And databaseing the billing details including the mobile station identification code, the sound source identification code, and the billing processing date and time by the radio transmission control station.

The present invention includes the steps of the radio transmission control station to spread the advertising data to different advertising identification codes to maintain mutual orthogonality; And extracting and playing the corresponding advertisement data by despreading the advertisement signal broadcasted by the registered advertisement identification code by the mobile station at the user's request.

In this case, it is preferable that the mobile station accumulates the number of times of advertisement reproduction in the memory every time the advertisement data is reproduced.

Then, the present invention comprises the steps of: querying a user whether the mobile station will process charging for sound source reproduction in exchange for advertisement reproduction after the mobile station completes the reproduction of the extracted sound source data; Setting, by the mobile station, the state of the sound source to the charging completed state; And reducing, by the mobile station, the number of times the advertisement is played by a predetermined amount.

Optionally, the present invention comprises the steps of: spreading and broadcasting the latest song sound source data to different sound source identification codes maintaining mutual orthogonality; And if the mobile station determines that the sound source requested by the user is not broadcast, despreading a sound source signal that is broadcast with a sound source identification code that is dependent on the ranking of the latest song, and extracting and playing the corresponding sound source data. It may further include.

In this case, it is preferable to play the latest songs belonging to the final ranking while lowering them one by one, starting with the latest songs having the highest ranking.

Preferably, the present invention, the radio transmission control station broadcasts the sound source update data including the identification code of the sound source to be updated and the title, artist name and genre of the sound source; And receiving, by the mobile station, the sound source update data, and updating a registered sound source.

Sound source broadcast service system using the spread spectrum communication to achieve the technical problem, the sound source storage means for storing the n sound source data to be broadcast target and the sound source identification code of each sound source to distinguish each sound source and maintain mutual orthogonality; A radio wave transmission control station for spreading and spreading each of the n sound source data stored in the sound source storage means by a corresponding sound source identification code; And a sound source database containing identification codes and bibliographic details of the respective sound sources provided with the broadcast service, and if there is a request for playback of a specific sound source selected from the sound source database, reads the identification code of the specific sound source to despread the broadcast sound signal. And sound source reproduction means for extracting and reproducing the specific sound source data.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As shown in FIG. 1, the system according to the present invention includes a radio wave transmission control station 10 of a mobile communication network that continuously and repeatedly broadcasts a plurality of sound sources. For example, the radio transmission control station 10 broadcasts a sound source of about 1000 songs. Here, the meaning that the sound source is broadcast means that the radio transmission control station 10 continuously transmits a plurality of sound source data to the air regardless of the active request of the user.

For this purpose, the radio transmission control station 10 is interconnected with radio transmission means 20. Sound sources to be broadcasted are stored in the sound source storage means 40 provided in the radio transmission control station 10. The sound source stored in the sound source storage means 40 may be continuously added, updated or changed through the wired Internet. The addition, update or change of the sound source may be performed at all times by using a portable storage medium, a CD ROM, a DVD ROM, or the like.

A part of the sound source broadcasted by the radio wave transmission control station 10 is composed of the latest song sound source. For example, when the electronic transmission control station broadcasts 1000 sound sources, 50 of these can be configured as the latest or latest pop song. However, the present invention is not limited thereto.

Each sound source data broadcast by the electronic transmission control station 10 is broadcast by different sound source identification codes. When some of the sound sources to be broadcast is composed of the latest song, the latest song sound source is spread by the same sound source identification code even if the type is changed. For example, when broadcasting the latest song from 1st to 50th, 50 different sound source identification codes are assigned to each rank, and sound sources belonging to a specific rank are spread by the same sound source identification code even if the sound source is changed.

In the present invention, the meaning of 'diffusion and broadcast' the sound source data is convolution (convolution) with a sound source identification code of a bit larger than the sound source data so that the receiver side can independently extract the sound source data through 'despreading'. Means to perform an operation. Preferably, different sound source data is spread by different sound source identification codes when spreading the sound source data.

In the process of transmitting the sound source data to the air, a carrier modulation process may be performed on the sound source data spread separately from the process of spreading the sound source data.

When the receiver performs 'reverse spreading' of the sound source data, the sound source data reached at the receiver is convolutionally calculated using the same sound source identification code as that used when the sound source data is spread. Through the backspreading of the broadened sound source data, it is possible to selectively extract only specific sound source data even when a plurality of sound source data (spreaded) is broadcast and reached together at the receiving side.

A sound source identification code used for spreading or despreading sound source data is a code having a predetermined length consisting of -1 and 1, and is a reproducible code sequence that maintains orthogonality with each other, and is called a code sequence or spreading code used in spread spectrum communication. One of them is similar to PN (Pseudo Noise) code.

According to the present invention, when a plurality of sound source data are broadcast by the electronic transmission control station 10, each sound source data is spread with different sound source identification codes, and when the sound source data is restored by the receiver, it is used to spread the sound source data. It is characterized by despreading the broadcasted sound source data using the same sound source identification code as the sound source identification code, and which communication technology transfers the spread sound source data from the transmitting side to the receiving side affects the technical scope of the present invention. Not crazy

Therefore, when the electronic transmission control station 10 spreads the sound source data using the sound source identification code and then broadcasts the spread sound source data to the air through the electronic transmission control station 10, it is known in the art. Or various communication technologies to be developed and commercialized in the future may be employed.

Communication technologies employable in the present invention include Code Division Multiple Access (CDMA), W-CDMA, Orthogonal Frequency Division Multiplexing (OFDM), High Speed Downlink Packet Access (HSPDA), and the like, but the present invention is not limited thereto.

The electronic transmission control station 10 broadcasts multiple sound sources in the following three ways.

<First method>

The radio transmission control station 10 broadcasts a total of n sound sources from the sound source 1 to the sound source n, and broadcasts the entire data of each sound source at once at each broad time point of the radio wave as shown in Table 1 below. The radio wave broadcast according to the first method is repeatedly repeated, and the difference between the viewpoints of each radio wave broadcast is several to several tens of microseconds.

TABLE 1

First point Sound Source 1 ··· ··· ··· Sound source n Second point Sound Source 1 ··· ··· ··· Sound source n Third time point Sound Source 1 ··· ··· ··· Sound source n 4th time point Sound Source 1 ··· ··· ··· Sound source n

<The second method>

The radio transmission control station 10 broadcasts a total of n sound sources from the sound source 1 to the sound source n, and as shown in Table 2 below, divides and broadcasts the entire data of each sound source little by little at each broad time point of the radio wave. In other words, while broadcasting a number of sound sources, each sound source is divided into multiple times to broadcast. Table 2 shows the case of broadcasting one sound source three times. The radio wave broadcast according to the second method is continuously repeated at the first to third time points, and the difference between the radio wave broadcast points is several to several tens of microseconds.

TABLE 2

First point Sound source 1 (1/3) ··· ··· ··· Sound source n (1/3) Second point Sound source 1 (2/3) ··· ··· ··· Sound source n (2/3) Third time point Sound source 1 (3/3) ··· ··· ··· Sound source n (3/3) 4th time point Sound source 1 (1/3) ··· ··· ··· Sound source n (1/3)

<Third method>

The radio transmission control station 10 broadcasts a total of n sound sources from the sound source 1 to the sound source n, and divides the n sound sources into a predetermined number of groups and then broadcasts them collectively by group. Table 3 below divides the n sound sources into three groups, broadcasts the sound of the first group at a first time at a first time, broadcasts the sound of the second group at a time at a second time, and a third time point. Shows the case of broadcasting the third group sound source at once. The radio wave broadcast according to the third scheme is continuously repeated at the first to third time points, and the difference between each radio wave broadcast point, for example, the difference between the first and second views is several to several tens of microseconds.

TABLE 3

First point Sound Source 1 ··· ··· ··· 1 / 3rd sound source Second point 1/3 + 1st sound source ··· ··· ··· 2 / 3rd sound source Third time point 2/3 + 1th sound source ··· ··· ··· nth sound source 4th time point Sound Source 1 ··· ··· ··· 1 / 3rd sound source

In the present invention, the sound source data spread by the sound source identification code is broadcast to all mobile communication areas managed by the radio wave transmission control station 10. At this time, the spread sound source data may be carrier-modulated according to the communication technology applied when the broadcast.

On the other hand, unlike shown in Figure 1, there may be a plurality of radio wave transmission means 20 for one radio wave transmission control station 10. In addition, the area where the sound source data is broadcast can be extended as much as possible. Therefore, the radio wave transmission control station 10 can be expanded as much as necessary. When there are a plurality of radio wave transmission control stations 10, it is preferable that the sound source data is simultaneously broadcasted to a corresponding mobile communication service area managed by each radio wave transmission control station 10.

On the other hand, there is a mobile station 30 of the user in a corresponding configuration of the radio transmission control station 10. Mobile station 30 refers to a handset terminal carried by an individual. Preferably, mobile station 30 has a Spread-Spectrum Multiple Access function. This function refers to a function of selectively diffusing specific sound source data by despreading the sound source data broadcasted by the radio wave transmission control station 10 using the sound source identification code used for spreading the sound source data.

In addition, the mobile station 30 includes a communication chipset capable of receiving sound source data corresponding to a communication technology applied when broadcasting the sound source data spread on the transmitting side. Such communication chipsets include CDMA chipsets, W-CDMA chipsets, OFDM chipsets, HSDPA chipsets, and the like. The mobile station 30 may be a mobile phone, a PDA, a vehicle digital set-top box (eg, a navigation or in-vehicle multimedia digital device). However, the present invention is not limited thereto.

The mobile station 30 carries the sound source database 50 in its own memory. The sound source database 50 includes titles, genres, singers, sound source identification codes, distribution dates, chargeable flags, and broadcast flag for a plurality of sound sources. The sound source data sample may further include a sound source data sample for an introduction portion (eg, 10 seconds) of.

In the present invention, each sound source identification code stored in the sound source database 50 is the same as each sound source identification code used in the diffusion process for the sound source. Therefore, the set of sound source identification codes contained in the sound source database 50 is substantially the same as the set of sound source identification codes used by the radio wave transmission control station 30 in spreading the sound source data.

In this case, three flags can be designated as the charging flag. The first state is charged, the second state is regenerated but not charged, and the third state is not. In addition, two flags can be designated as the broad flag. One is an indication that a sound source is currently serving a broad service, and the other is an indication for automatically requesting a broad service because it is not being a broadcast service.

The sound source database 50 is preferably mounted on the storage medium of the mobile station 30 at the time of new release of the mobile station 30. Here, the storage medium is preferably an inert memory, for example, may be a flash memory. However, it may be added to the mobile station 30 through future upgrade. Preferably, the upgrade of the sound source database 50 may be an upgrade through a wireless Internet, an upgrade through an agent handling a mobile station. More preferably, the sound source database 50 can be upgraded by the broad method of the present invention.

That is, the radio transmission control station 10 continuously broadcasts the upgrade data using a predetermined upgrade spreading code. Then, the mobile station 30 may despread the upgraded data broadcasted using the same code as the upgrade spreading code to extract the upgraded data and reflect the upgraded data to the sound source database 50. At this time, the upgrade data includes the title of the sound source, genre, singer, sound source identification code, distribution date, charging status flag, broadcast flag or the like. At this time, the flag value is set to a default value (no charge, broadcast sound source). In an optional example, the upgrade data may further include sound source data samples for the beginning portion of the sound source (eg, 10 seconds). Naturally, the set of information included in the upgrade data should be as many as the number of sound sources to be upgraded.

The mobile station 30 includes a sound source search engine 60 capable of searching for a playback target sound source using its own sound source database 50. The search can be made by any combination of information contained in the sound source database 50. For example, the search can be performed by song title, singer name, genre, broadcast status, billing completion status, and the like. The user of the mobile station 30 may use the sound source search engine 60 to search for and select a specific sound source and request playback of the selected sound source. Like a typical search engine, the sound source search engine 60 provides a function of sorting the searched results using a search factor.

The mobile station 30 includes a sound source reproducing means 70 for reproducing a corresponding sound source when a reproduction request is made for a particular sound source. The sound source reproducing means 70 performs backspreading on all the spread sound source signals reaching the mobile station 30 when there is a request for reproducing a specific sound source. At this time, the despreading code used is an identification code of a sound source selected by the user. This sound source identification code is referenced from the sound source database 50. Then, only the sound source signal spread by the same sound source identification code as the reverse spreading code among the signals reached and broadcasted to the user's mobile station 30 is selectively recovered, and the remaining sound source signals are regarded as noise and removed. Since this is a known principle of spread spectrum communication, detailed description thereof will be omitted. Meanwhile, the demodulation process of the received sound source data may be preceded before the reverse spread of the sound source data according to the communication technology applied to the sound source data spread from the transmitting side to the receiving side.

As described above, when the sound source signal is restored, the sound source reproducing means 70 reproduces the sound source using the restored sound source data. The mobile station 30 includes a hardware memory having a buffer function for reproduction of a sound source. This is because the restored sound source data is a compressed bit array, and thus a buffer for temporarily storing the restored sound source is required. The mobile station 30 includes an earphone connection terminal, an external speaker, and the like, for outputting the reproduced sound source. Since the process from the sound source data signal is restored by the reverse spread to the actual sound by buffering is well known in the art, detailed description thereof will be omitted.

On the other hand, in an optional example of the present invention, the sound source database 50 may further include sound source data samples for the beginning of each sound source. At this time, the sound source data sample may be utilized as follows. That is, even if the sound source data reached to the mobile station 30 at the time when the user requests the reproduction of a specific sound source is not the beginning part or the beginning part of the sound source, the buffering of the sound source data is required for a predetermined time, and thus the instantaneous sound When it is difficult to reproduce, the sound source reproducing means 70 immediately outputs a sound source selected by the user using the sound source data samples stored in the sound source database 70, and when the reproduction of the sound source data samples is completed, the reproduction completion section of the sample Thereafter, playback of the buffered sound source data starts. For example, if the sample reproduction time for the sound source data is 10 seconds, the reproduction of the buffered sound source data starts from 10 seconds or later. Of course, the reproduction time for the sample of the sound source data can be adjusted as much as possible. In this case, there is an advantage that it is possible to immediately play the sound source from the point in time when the user requests to play a specific sound source.

As will be described later, when the sound source is reproduced as described above, a fixed fee is added and the charging information is collected and managed by the radio transmission control station 10. Preferably, the charge is made after the reproduction of the sound source is completed.

The sound source reproducing means 70 included in the mobile station 30 provides an additional function for creating a list list of sound sources. That is, the user may create a list of the sound sources that he / she frequently hears by artist, date, genre, etc. using the additional function. If a list list is created, a plurality of predetermined sound sources can be conveniently played back by selecting only the list list without having to select a sound source at the time of playing a sound source. The created list list is stored in the hardware memory of the mobile station 30.

Meanwhile, the radio transmission control station 10 broadcasts a predetermined number of advertisements continuously and repeatedly. The method of broadcasting the advertisement is substantially the same as any one of the three broadcast methods of the aforementioned sound source. In this case, each advertisement is spread by a different advertisement identification code. Here, the advertisement identification code has similar characteristics to the above-described sound source identification code.

The sound source reproducing means 70 of the mobile station 30 supports a mode of playing an advertisement. The user may play an advertisement broadcasted from the radio transmission control station 10 in the advertisement playback mode, and may be given a benefit of playing the sound source free of charge when the number of times of reproduction reaches a predetermined criterion. In this case, it is free to decide freely on the basis of how many advertisements to play the free sound source playback.

The mobile station 30 stores, in memory, an advertisement identification code identical to the identification code used by the radio transmission control station 10 to spread the advertisement data for reproduction of the advertisement. Therefore, when an advertisement is played in the mobile station 30, the advertisement signal broadcast to the mobile station 30 is despread by the specific advertisement identification code stored in the memory to restore the original advertisement signal spread by the specific advertisement identification code. Then play it back. The advertisement identification code can be updated by the radio transmission control station 10 similarly to the sound source.

Hereinafter, embodiments of the present invention will be described in more detail.

First, the format of the data broadcast through the radio transmission control station 10 and the process of reproducing the sound source will be described.

1. Definition of Data Types

<Data format broadcasted by the radio wave transmission control station 10 (hereinafter referred to as first format)>

① ② ③ ④

(1) A field into which a code indicating the sequence number of data is inserted.

② A field into which a code for determining whether the advertisement data or the sound source data is inserted is inserted.

③ Field where sound source data code or advertisement data code is inserted.

④ Field where sound source data or advertisement data is inserted.

The data is a structure of data transmitted at each radio broadcast time point in the above-described first to third methods.

2. Sound source playback process 1 (when the sound source is broadcast in the first method)

When the playback of a specific sound source is requested through the sound source playback means 70, the sound source playback means 70 identifies the sound source requested for playback in the sound source database 50, and refers to whether the broadcast service is performed by referring to the broadcast flag or not. Determine.

If the sound source is provided with a broadcast service, the corresponding sound source identification code is read. Then, the sound source signal broadcast to the mobile station 30 is despread with the read sound source identification code to selectively extract sound source data corresponding to the read sound source identification code. Then, the extracted sound source data is stored in a buffer and the sound source is played.

In the case of the first method, since the entire sound source data is transmitted at each broadcast time point, the extracted sound source data is the entire sound source data. Therefore, reception of additional sound source data is unnecessary.

On the other hand, if the broadcast service is not provided for the requested sound source, the mode changes to the latest song reproduction mode. Then, the sound source identification code of the highest rank is read and the above process is performed to reproduce the latest song. The latest song is played repeatedly until the last rank is set by decreasing the rank by 1 unless a user requests otherwise.

3. Sound source playback process 2 (when the sound source is broadcast in the second method)

When the playback of a specific sound source is requested through the sound source playback means 70, the sound source playback means 70 identifies the sound source requested for playback in the sound source database 50, and refers to whether the broadcast service is performed by referring to the broadcast flag or not. Determine.

If the sound source is provided with a broadcast service, the sound source identification code is read. Then, the sound source signal broadcast to the mobile station 30 is despread with the read sound source identification code to selectively extract sound source data corresponding to the read sound source identification code. Then, referring to the ① field of the extracted sound source data, the first sound source data is stored in the buffer and playback starts at the same time. In parallel with this process, the despreading of the sound source signal broadcast to the mobile station 30 continues. If there is sound source data extracted through despreading, as shown above, if the extracted sound source data is the second sound source data, it is connected to the sound source data stored in the buffer. The connection process of the sound source data is repeated until the last sound source data is extracted and connected to the sound source data in the buffer. Of course, the reproduction of the sound source is continuously performed in parallel with the connection of the sound source data.

In the case of the second method, since the sound source data is divided and divided into several times and broadcast, it is necessary to extract the sound source data by multiple back diffusions to reproduce one sound source.

On the other hand, if the broadcast service is not provided for the requested sound source, the latest song is reproduced as in step 1 described above.

4. Sound source playback process 3 (when sound source is broadcast in third way)

When the sound source data is broadcast in the third method, since n sound sources are grouped and broadcasted, the actual transmission method is similar to the first method except that the period until the same sound source is broadcasted is longer than that of the first method.

Therefore, the process of reproducing the sound source when the sound source is broadcast in the third manner can be easily understood through reference to the above-described process 1, and thus a repetitive description thereof will be omitted.

In the above-described sound source reproduction methods 1 to 3, the sound source for a predetermined time even if the corresponding sound source data reached to the mobile station 30 when the user is requested to play a specific sound source is not the beginning portion or the beginning portion of the sound source. If the buffering of data is necessary, instant playback of sound source data is not performed.

In the above case, the sound source reproducing means 70 immediately outputs the sound source selected by the user using the sound source data samples stored in the sound source database 70, and when the reproduction of the sound source data samples is completed, after the completion of the reproduction of the sample Starts playback of the buffered source data. For example, if the sample reproduction time for the sound source data is 10 seconds, the reproduction of the buffered sound source data starts from 10 seconds or later. Of course, the reproduction time for the sample of the sound source data can be adjusted as much as possible. In this case, there is an advantage that it is possible to immediately play the sound source from the point in time when the user requests to play the specific sound source.

Next, to define the format of the data transmitted and received between the radio transmission and reception station 10 and the mobile station 30 to perform the charging after the reproduction of the sound source, and based on the charging process, advertising playback and free sound source playback process, and The update process of the sound source database 50 is demonstrated in detail.

1. Definition of Data Types

<Format of data transmitted from the mobile station 30 to the radio transmission control station 10 for charging (hereinafter referred to as a second format)>

① ② ③ ④

(1) A field into which a code is inserted indicating that data is charged.

② field into which the identification code (eg, ESN) of the mobile station is inserted.

③ Field where the sound source identification code to be charged is inserted.

④ A field into which a chord indicating the charging status of a sound source is inserted (default value: a chord indicating no charging).

For reference, the above ③ and ④ may be repeated.

<Format of data transmitted from radio wave transmission control station 10 to mobile station 30 after charging is completed (hereinafter referred to as third format)>

① ② ③ ④

① Field into which the identification code (eg, ESN) of the mobile station is inserted.

(2) A field into which a code indicating that charging response data is inserted is inserted.

③ The field where the sound identification code is charged.

④ A field into which a code indicating the charging status of a sound source is inserted (default value: a code indicating that the charging is completed).

For reference, the above ③ and ④ may be repeated.

2. Charging process for sound source playback

2 is a flowchart showing a charging process for sound source reproduction. In the figure, it is noted in advance that the step numbered by S is a step performed by the mobile station 30, and the step numbered by P is a step performed by the radio transmission control station 10 (also in the remaining drawings). Same).

Referring to FIG. 2, first, the sound source reproducing means 70 checks whether or not the reproduction of the sound source currently being reproduced is completed (S10). As a result, if 'YES', the identification code of the sound source that has been reproduced is added to the billing target sound source list (S20). On the contrary, if NO, playback of the sound source is continued (S30).

Next, the sound source reproducing means 70 checks whether the number of sound source identification codes contained in the sound source list is greater than 3 (S40). Here, since 3 is set arbitrarily, any number of changes can be made. As a result, if YES, data according to the second format is constructed (S50). At this time, ③ and ④ are configured so that the data is repeated three times. Then, the configured data is transmitted to the radio wave transmission control station 10. On the other hand, if the check result of step S40 is 'NO', the process returns to the playback routine of the other sound source.

In step S40, when the second type of data is transmitted, the radio transmission control station 10 determines whether it is charging data (P10). Subsequently, the mobile station 30 is determined using the identification code of the mobile station 30, the information contained in the fields 3 and 4 is extracted, and the sound source billing details are databased (P20). Here, the billing details are mobile station identification code; Sound source identification code; Billing processing date and time;

When the P30 step is performed, the radio transmission control station 10 configures the third type of data and transmits the data to the mobile station 30 (P30). Then, the sound source reproducing means 70 of the mobile station 30 refers to the (3) and (4) fields and identifies the sound source in which the charge processing is completed in the sound source database 50, and sets the charging state flag to 'charging completed' (S60). .

On the other hand, if the sound source is reproduced by the sound source list list, it is obvious that the above-described charging process according to the sound source reproduction will be repeated every time the sound source is played.

The sound source that has been charged as described above is not duplicated even if it is played again next time. That is, the process of FIG. 2 does not proceed even if the playback of the sound source is completed for the sound source for which charging is completed. On the other hand, the usage fee for the sound source is billed in addition to the usage fee bill sent out monthly by the management company of the mobile station (10). To this end, the management company refers to a monthly database of billing details. That is, after calculating the total number of sound sources for which the charge was made for each mobile station identification code included in the billing history each month, multiplying the charges per sound source can calculate the charges to be charged to each mobile station identification code.

3. Play ads and play free music

As mentioned above, the radio transmission control station 10 of the present invention continuously and repeatedly broadcasts a predetermined number of advertisements. In addition, if the user of the mobile station 30 intentionally plays the advertisement in the advertisement play mode provided by the sound source playing means 70, the user can receive a benefit of playing the sound source free of charge. 3 shows this process in detail.

Referring to the figure, the user changes the mode of the sound source playback means 70 to the advertisement playback mode (S70). Then, the sound source playback means 70 leads all the advertisement identification codes registered in the memory to form an advertisement play list (S80). Thereafter, the first advertisement identification code despreads the advertisement signal broadcast to the mobile station 30 to selectively restore the corresponding advertisement data (S90). Then, the advertisement data is reproduced (S100). When the reproduction of the advertisement data is completed, the number of reproduction of the advertisement data is increased by one. At this time, it is a matter of course that the number of times of advertisement data reproduction is stored in the memory (S110).

Subsequently, the sound source playback means 70 checks whether there is an advertisement identification code of the next order in the advertisement play list (S110). As a result, if 'YES', the step of reproducing the advertisement data broadcasted by the next advertisement identification code to reproduce the advertisement data and to increase the number of times of reproduction of the advertisement data by one again. On the contrary, if there is no next advertisement identification code, the advertisement reproduction routine is terminated.

On the other hand, although not shown in the drawings, when the advertisement is played as described above, the user can play the sound source for free. Specifically, in step S10 of FIG. 2, when the reproduction of the sound source is completed, the sound source reproducing means 70 reads the number of times of playing advertisements stored in the memory before proceeding to step S20. Then, if the number of times the advertisement is played exceeds a predetermined criterion, it is queried whether to replace the charging of the sound source in exchange for the advertisement. This query is output via a display provided to the mobile station 30. For example, if a policy of allowing one advertisement to be played for free when three advertisements are played, the predetermined criterion is three.

If the user agrees to the query as described above, the sound source reproducing means 70 identifies the sound source that has been reproduced in the sound source database 50 and sets the charging state of the sound source to 'charging completed'. Then, the number of times the advertisement is played is reduced by a predetermined amount. In the previous example, the cut quantity is three. On the contrary, if the user disagrees with the query as described above, a subsequent procedure including the step S20 is performed. Of course, the above policy for reproducing the sound source free of charge can be changed.

4. Update of the sound source database 50 according to the addition of the sound source to be broadcast

The radio wave transmission control station 10 of the present invention can update the sound source registered with the mobile station 10 when the sound source to be broadcast is increased. The following is the data format used when updating.

<Data format transmitted by the radio wave transmission control station 10 to the mobile station 30 when the sound source is updated (hereinafter referred to as fourth format)>

① ② ③ ④

① Field into which code to distinguish whether it is update data is inserted

② Field to insert list name of update list

③ updated sound source identification code

④ Field to insert title, singer, genre of sound source to be updated

For reference, ③ and ④ may be repeated a plurality of times.

When the sound source to be broadcast is added, the radio transmission control station 10 constructs data according to the fourth format and broadcasts the data to the mobile station 30. At this time, the update data is spread and transmitted using a predetermined update identification code. Then, the mobile station 30 despreads the broadcast update data by using the update identification code (same as the update identification code) previously stored in the memory to identify the data according to the fourth type, and then fields ③ and ④. Reference is made to update the sound source database 50.

The update of the sound source database 50 may be performed at regular intervals. For this purpose, an update module (a kind of program) in charge of the update of the sound source database 50 is installed in the mobile station 30, and the update module is activated at regular intervals. It is preferable to proceed with the update operation of the sound source database 50 as described above.

On the other hand, the fourth type of data format may be utilized when adding an advertisement identification code. In this case, an advertisement identification code is inserted into the field ③. Alternatively, the fourth form of data format may be used to update the sound source and the advertisement at the same time. In this case, the ③ and ④ fields are repeated, but the advertisement identification code is inserted into the ③ field of the specific repeating unit, and the sound source identification code is inserted into the ③ field of the specific repeating unit. The field ④ may be null in the repeating unit where the advertisement identification code is inserted.

In the above-described configuration of the present invention, the radio wave transmission control station 10 may be a base station controller and the radio wave transmission means 20 may be a base station. Alternatively, when the present invention is implemented by satellite DMB technology, the radio transmission control station 10 may be a satellite DMB center and the radio transmission means 20 may be a satellite in communication with the satellite DMB center. Alternatively, if the present invention is implemented by terrestrial DMB technology, the radio transmission control station 10 is a local DMB center located in the region and the radio transmission means 20 is managed by the local DMB center. It can be a radio transmitter.

The present invention is applicable to all spread spectrum communication technologies. Therefore, the present invention is not limited to the kind of specific spread spectrum communication technology such as CDMA or W-CDMA, and is not limited by whether the spread spectrum communication technology is synchronous or asynchronous.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

The present invention makes it possible to broadcast a sound source in a mobile environment. At the same time, it is possible to charge for the reproduction of the sound source. Therefore, the copyright infringement problem does not occur in the broadcast process of the sound source. Furthermore, even if you do not download the sound source separately in the mobile environment, anytime, anywhere can play the desired sound source, more differentiated sound source services are possible. In addition, by interconnecting the playback of the sound source and the reproduction of the advertisement, the advertiser can expect a high advertising effect, the user can benefit from receiving the sound source playback service for free.

Claims (15)

(a) spreading and broadcasting a plurality of sound source data to different sound source identification codes maintaining mutual orthogonality by a radio transmission control station; And (b) the mobile station despreading the broadcast sound source signal using the sound source identification code of the specific sound source selected by the user to extract and reproduce the corresponding sound source data; the sound source using spread spectrum communication, comprising: Broad service method. The method of claim 1, wherein in step (a), And the radio wave transmitting control station broadcasts n pieces of sound source data at every broadcast time point repeated in a predetermined period. The method of claim 1, wherein in step (a), The radio wave transmitting control station broadcasts n sound source data, and divides each sound source data into a predetermined number and broadcasts it multiple times at each broadcast time point repeated in a predetermined period. The method of claim 1, wherein in step (a), The radio transmission control station broadcasts n sound source data, divides the n sound sources into a predetermined number of groups, and broadcasts a plurality of times per group at each broadcast time point repeated at a predetermined period. Sound recording service method. The method according to any one of claims 2 to 4, Step (b) may include selecting a sound source using a sound source search engine; Buffering the extracted sound source data in a buffer memory; And And reproducing the buffered sound source data. The method according to any one of claims 2 to 4, After the mobile station has finished reproducing the extracted sound source data, transmitting a sound source charging processing request including at least the mobile station identification code and the sound source identification code to a radio wave transmission control station; And And transmitting, by the radio transmission control station, a database of the billing details including the mobile station identification code, the sound source identification code, and the billing processing date and time. 6. The method according to any one of claims 2 to 4, Spreading and broadcasting the advertisement data to different advertisement identification codes maintaining mutual orthogonality by the radio transmission control station; And The mobile station despreads the advertisement signal broadcasted by the registered advertisement identification code according to a user's request, and extracts and reproduces the corresponding advertisement data. . The method of claim 7, wherein And storing, by the mobile station, the number of times the advertisement is reproduced in the memory each time the advertisement data is reproduced. The method of claim 8, Inquiring, by the user, whether the mobile station will process the charge for playing the sound source after the mobile station has finished playing the extracted sound source data; Setting, by the mobile station, the state of the sound source to the charging completed state; And The mobile station further comprises the step of reducing the number of times the advertisement playback by a predetermined amount; Broadband sound service method using the spread spectrum communication, characterized in that it further comprises. The method according to any one of claims 2 to 4, Spreading and broadcasting the latest song sound source data to different sound source identification codes maintaining mutual orthogonality; And If the mobile station determines that the sound source requested by the user for playing is not being broadcast, despreading a sound source signal that is broadcast with a sound source identification code that is dependent on the ranking of the latest song, and extracting and playing the corresponding sound source data; Sound source broadcast service method using spread spectrum communication comprising a. The method of claim 10, A sound source broadcast service method using spread spectrum communication, characterized by reproducing the latest songs belonging to the final ranking while lowering them one by one, starting with the latest songs of the highest ranking. The method according to any one of claims 2 to 4, Transmitting, by the radio transmission control station, sound source update data including an identification code of an update target sound source, a title, a singer name, and a genre of the sound source; And And receiving, by the mobile station, the sound source update data, and updating the registered sound source. Sound source storage means for storing n sound source data to be broadcast and a sound source identification code of each sound source for distinguishing each sound source and maintaining mutually orthogonality; A radio wave transmission control station for spreading and spreading each of the n sound source data stored in the sound source storage means by a corresponding sound source identification code; And By reproducing the sound source database containing the identification code and the bibliographic information of each sound source provided with the broadcast service, and reading the specific sound source selected from the sound source database by reading the identification code of the specific sound source And sound source reproduction means for extracting and reproducing the specific sound source data. The method of claim 13, The sound source storing means further stores a plurality of advertisement data to be broadcast target, and an identification code of each advertisement to distinguish each advertisement and maintain mutual orthogonality, The radio transmission control station spreads and broadcasts each advertisement data to a corresponding advertisement identification code, The sound source database further contains the identification code of the advertisement being broadcasted, And the sound source reproducing means reads and reproduces the corresponding advertisement data by despreading the broadcast advertisement signal by reading the recorded advertisement identification code at the request of the user. The method of claim 13, The sound source reproducing means transmits a charging processing request including at least the mobile station identification code and the reproducing sound source identification code to the radio wave transmission control station when the reproduction of the sound source is completed, And the radio wave transmission control station is configured to database a billing history including a mobile station identification code, a sound source identification code, and a billing date and time.

Images