JPH07146861A - Character displaying method - Google Patents

Abstract

PURPOSE:To promptly look at the sentence displayed by a vertical siting on a screen with a sense which is closer to the one when the newspaper article distributed by paper is read as much as possible by switching a display by defining a stage composed of plural characters as a unit at the time of a vertical scroll. CONSTITUTION:In a state that a line is vertically displayed, it is general that this scroll is performed in the horizontal direction. Namely, by moving the vertical line in the horizontal direction, a new character is made to be added to a screen for every line. But, it is inconvenient to quickly read the front or the rear sentence desultorily because it takes long time in this scroll. When a vertical scroll button is operated when the data of a range A shown in (d) is read and a display shown in (a) is performed on a monitor, the data of the range (D) shown in (d) is extended like (b). This range D is the one corresponding to one screen succeeding to the range A or the data corresponding to 13 lines in this case. Next, the data of a range E shown in (d) is extended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to, for example, newspapers, magazines,
Books, etc. are delivered or sold daily or regularly,
The present invention relates to a character display method suitable for electronically distributing information centering on text (characters) using a satellite and receiving and displaying the information on the receiving side.

[0002]

2. Description of the Related Art Information on newspapers, magazines, books, etc. is often distributed in the state of being printed on paper. Further, in recent years, with the progress of data communication technology using public telephone networks, it has become possible to distribute such information by electronic means. For example, an online service is widely used in which a personal computer is used to access a database such as a newspaper via a public telephone network to retrieve necessary information.

In addition, a service of contracting with a service center in advance and having article information of a desired newspaper or magazine delivered by fax has already been put into practical use.

However, the distribution of information on paper has the following problems. (1) Not so much when reading one newspaper or one magazine, but when reading multiple newspapers or magazines, the amount is very bulky and inconvenient. (2) It is inconvenient for a family to subscribe to a newspaper, even if the number of family members is large, only one person can read it at the same time. (3) Since a large amount of paper is consumed, the consumption of wood and pulp increases. (4) It is necessary to secure a delivery member for transportation and delivery, which increases transportation costs. (5) Since automobiles, motorcycles, etc. are used for transportation and delivery and generate exhaust gas, there is a risk of environmental damage.

In addition, the distribution of information by an electronic method is
Since the access fee for accessing the center database is high and the communication cost is required, the cost is very high, and it is not easily available to the general public.

Furthermore, the method of sending by fax requires a lot of manual labor to select desired article information for each contractor at the service center, so that the information charge is also very high. Therefore, it is not easy for the general public to use.

[0007] Therefore, the present applicant has previously proposed that data such as newspapers, magazines, books, etc. be distributed to each household via a satellite.

[0008]

By the way, a newspaper article, for example, usually has a series of sentences (articles) written vertically as shown in FIG. Also, each vertical line has 12
It is constituted by a unit consisting of 16 characters (for example, 14 characters). Since the readers of newspapers are already accustomed to this configuration, it is preferable to display electronically delivered newspaper articles in a column configuration composed of such vertically written lines.

Normally, the character displayed on the screen can be seen at a predetermined display position by scrolling. However, when the line is displayed vertically, this scroll is performed in the horizontal direction. Is common. That is, by moving a vertical line in the horizontal direction, a new character is
Each line can be additionally displayed on the screen.

However, such scrolling has a problem that it takes a long time to quickly browse forward or backward sentences.

The present invention has been made in view of such a situation, and it is possible to quickly see the text displayed on the screen with a feeling as close as possible when reading a newspaper article distributed by paper. It is something to do.

[0012]

According to the character display method of the present invention, a plurality of lines of characters forming a sentence are displayed on the screen so that each line is vertical, and the lines are displayed on the screen during horizontal scrolling. To move horizontally to display the remaining lines following the line displayed on the screen in sequence, and during vertical scrolling, switch the display in units of columns composed of a predetermined number of characters. , The remaining lines following the line displayed on the screen are sequentially displayed.

At the time of this vertical scrolling, the display is collectively switched for each number of lines corresponding to the horizontal width of the screen, or the display is collectively switched for each number of lines slightly smaller than the number corresponding to the horizontal width of the screen. Can be done. Further, the state at the time of switching the stage can be displayed within a relatively short time.

[0014]

In the character display method having the above structure, during vertical scrolling, the display is switched in units of columns composed of a plurality of characters so that the remaining lines following the line displayed on the screen are sequentially displayed. . Therefore, it is possible to display the lines following the line very quickly.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of the configuration of a data broadcasting system which is the basis of an apparatus to which the character display method of the present invention is applied. A newspaper company as an information provider has a large-scale computer 1. A paper space database is stored in the large-scale computer 1. This paper surface database includes article information for printing on newspapers, layout information, and the like. The data in this database is transmitted to the workstation 2 and edited there as required.

That is, article data is edited for each page (genre) so that the receiving side can easily retrieve it. For example, this editing creates a screen for search in which the layout is unchanged and only the headline is visible and the paper surface is reduced as it is. Furthermore, the search screen (headline) is associated with the article describing the details so that the article corresponding to the headline can be displayed. In this way, the data edited in a form that can be easily searched by the receiving side is transmitted to the broadcasting center (broadcasting station) 3 via the data line on the ground.

The broadcasting center 3 has a transmitting device as shown in FIG. 2, for example. That is, the data transmitted from the newspaper publisher is newspaper data, scramble key, common information,
It is made up of data such as the receiving device ID and contract contents. Of these, the newspaper data is the data scrambler 1
4 and is scrambled corresponding to the pseudo random sequence output from the PN (pseudonoise) generator 13 and output to the independent data channel multiplexing circuit 12. The pseudo-random sequence generated by the PN generator 13 is
It is set according to the scramble key supplied by the newspaper company.

Besides the scramble key, the common information, the receiving device ID and the contract content are supplied to the encryption circuit 11 and encrypted. The encrypted data is supplied to the independent data channel multiplexing circuit 12 as related information.

The independent data channel multiplexing circuit 12 is
The scrambled newspaper data supplied from the data scrambler 14 and the related information supplied from the encryption circuit 11 are multiplexed and output to the digital channel signal multiplexing circuit 15.

The above configuration constitutes an encoder 25 for generating data in an independent data channel, which will be described later with reference to FIG.

Digital channel signal multiplexing circuit 15
In addition, an audio signal transmitted as a digital channel signal, which will be described later with reference to FIG. 3, (at least a part of which is an audio signal accompanying a video signal described later).
Is entered. Digital channel signal multiplexing circuit 1
5 is an input audio signal (digital audio signal),
The data supplied from the encoder 25 is multiplexed and 4
The phase DPSK modulator 16 is supplied.

The 4-phase DPSK modulator 16 4-phase DPSK-modulates the input data and outputs it to the video signal / digital channel signal multiplexing circuit 17. This video signal /
A video signal to be broadcast at the broadcast center 3 is also input to the digital channel signal multiplexing circuit 17. The audio signal input to the digital channel signal multiplexing circuit 15 is a digital signal, whereas the video signal input to the video signal / digital channel signal multiplexing circuit 17 is an analog signal.

The video signal / digital channel signal multiplexing circuit 17 frequency-multiplexes the input video signal and the signal supplied from the 4-phase DPSK modulator 16, and FM
Output to the modulator 18. The FM modulator 18 FM-modulates a predetermined carrier with the input signal and outputs it to the up converter 19. The up converter 19 frequency-converts the frequency of the input FM signal into a frequency on the order of gigahertz. FM output from the up converter 19
The signal is power-amplified by the power amplifier 20 and then supplied to the transmitting antenna 21 and is then transmitted to the satellite (broadcast satellite or communication satellite) 4 (FIG. 1).

FIG. 3 shows the frequency spectrum of the signal input to the FM modulator 18. As shown in the figure, the video signal has a frequency band up to about 4.5 MHz, and the signal output from the 4-phase DPSK modulator 16 is a signal having a frequency of 5.727272 MHz as a subcarrier. ing. That is, the video signal and the 4-phase DPSK signal are frequency-multiplexed and transmitted.

FIG. 4 shows a format (format in the A mode) of digital channel data which is 4-phase DPSK modulated. As shown in the figure, horizontal 6
One frame of data is composed of 2048-bit data of 4 bits and 32 bits in the vertical direction. A frame synchronization signal, a control signal, and a range bit signal are recorded in the first 2 bits × 32 bits range.

Since one frame of data is transmitted in a time of 1 ms, the transmission rate is 2.048 Mbps.

The frame synchronization signal is a signal for synchronizing each frame. The control signal has 16 bits as a unit, and as shown in Table 1, the first 1 bit indicates which mode is the A mode or the B mode. The B mode will be described later. The following second and third bits indicate whether the television audio signal (audio signal accompanying the video signal) is a stereo signal, a monaural 1-channel signal, or a monaural 2-channel signal. It is done like this.

Further, the 4th bit and the 5th bit are either a stereo audio signal, a monaural 1-channel audio signal, or a monaural 2-channel audio signal, in addition to the television audio. Or a signal other than voice.
Bits 6 to 15 are extension bits for future use. The 16th bit is a code for indicating whether or not the audio output is suppressed.

[0029]

[Table 1]

Table 2 shows the first to fifth bits and the first.
It shows the more detailed contents of 6 bits. That is, when the first bit is 0, it means that the mode is A.
, The mode is B. When the second bit is 0 and the third bit is 0, the television audio signal is stereo, and when the second bit is 0 and the third bit is 1, the television audio signal is It represents that it is a monaural 2 channel signal (recorded in audio 1 and audio 2 in the format of FIG. 4). When the second bit is 1 and the third bit is 0, it means that the television audio signal is a monaural 1-channel signal (recorded in audio 1). The state where both the second bit and the third bit are 1 is not particularly used.

When the 4th bit is 0 and the 5th bit is 0, it means that the additional voice is stereo, and when the 4th bit is 0 and the 5th bit is 1, the additional voice is added. It indicates that the sound is a monaural 2-channel signal (recorded in the sounds 3 and 4). Further, when the fourth bit is 1 and the fifth bit is 0, it indicates that the additional voice is a monaural 1-channel signal (recorded in the voice 3). When both the 4th bit and the 5th bit are 1, it indicates that a signal other than voice is transmitted.

Further, the 16th bit is set to 1 when the voice output is suppressed and is set to 0 when the suppression is released.

[0033]

[Table 2]

As shown in FIG. 4, in the first 2 × 32 bit range, the next 10 × 32 bit range, and the subsequent 10 × 32 range, the voice data of voice 1 to voice 4 are respectively provided. Is recorded. 1
32 samples of audio data are arranged in each range of 0 × 32 bits. That is, the number of bits per sample is 1.
It is set to 0 bit. However, the analog audio signal is converted into 14-bit digital data per sample. Of these, the upper 10 bits of the significant digit are selected and transmitted as one sample of data. That is,
As shown in FIG. 5, the upper 10-bit data of the significant digit of the 14-bit data is selected, and therefore there are five ranges to be selected. The range bits recorded in the first range of 2 × 32 bits indicate which of the five ranges is 10 bits.

In the A mode, the audio data of one channel is arranged in this 10 × 32 bit range, but in the B mode, 20 × 3.
Audio data for one channel is arranged in a 2-bit range. That is, in the B mode, higher quality audio data can be transmitted.

Next to the voice 4 data, the data of the independent data channel is arranged in the range of 15 × 32 bits, and further in the last 7 × 32 bits, the error correction code (C1) in the horizontal direction. Are arranged.

The data of the independent data channel shown in FIG. 4 is transmitted in units of packets. FIG. 6 shows the format of this packet. As shown in the figure, one packet is composed of 288 bits, and the first 16 bits are used as a header, followed by 19 bits.
Substantial data is arranged in 0 bit, and the error correction code (C1) of the packet is arranged in the last 82 bits.
Of the 16-bit header, the first 5 bits are the service identification code, and the remaining 11 bits are the horizontal error correction code (check bit) (C1) of the service identification code.
It is said that As will be described later with reference to FIG. 11, the service identification code includes a code for identifying related information and newspaper data.

The service identification code of the header 16 is as follows:
Since 5 bits are prepared, 32 kinds of services can be logically identified. However,
As shown in FIG. 7, when all of the 5 bits are 0, the identification code is used when there is no data to be sent as a dummy packet. Therefore, in practice, 31 types of services can be identified by the remaining 31 types of identification codes.

The data for one frame shown in FIG. 4 is collected for nine frames, as shown in FIG. 8, thereby forming a super frame. The bit string of one packet is
It consists of 1 superframe of data.

Further, as shown in the figure, in each frame, data is sequentially transmitted in the vertical direction. Therefore, the burst error occurs in the vertical direction in FIG. Therefore, in order to strengthen against this burst error, the independent data channels in the range of 15 × 32 bits are multiplexed in the diagonal direction. As shown in FIG. 8, since the horizontal length of the independent data channel is 15 bits, there are 15 diagonal directions. The 288-bit packet shown in FIG. 6 corresponds to each of these directions. Therefore, the independent data channel
There are 15 positions of packets (15 channel packets). By thus multiplexing in the diagonal direction, the data forming each packet can be interleaved, and the burst error is strengthened.

FIG. 9 schematically shows the structure of a packet in the independent data channel. As shown in the figure, the relevant information output from the encryption circuit 11 shown in FIG. 2 is assigned to one of the 15 packets. Then, for example, newspaper data (newspaper data output from the data scrambler 14) of the newspaper companies A to I can be allocated to the remaining 14 packets. However, one newspaper company can use a plurality of packets at the same time. In the embodiment shown in FIG. 9, one packet is used as the related information, and the newspaper article data of the newspaper publishers A, B, and C is
Two packets are assigned to each.

FIG. 10 schematically shows data for each of 15 packet positions. As shown in the figure, in this embodiment, the related information is assigned to the first packet, and the data of newspaper publisher A to newspaper publisher I are assigned to the second to fifteenth packets, respectively. There is. That is, the related information and the newspaper data A to I are simultaneously transmitted to each home.

FIG. 11 shows a more detailed format of the packet. As shown in the figure, in the packet of 288 bits, the first 16 bits are used as a header, and identification data (service identification data in FIG. 6) such as related information and newspaper data is placed therein. Related information or newspaper data is arranged in 190 bits following the header, and an error correction code is arranged in the last 82 bits.

There are two types of related information, common information and individual information. Is the common information at the beginning of the common information,
A type identification code for identifying whether the information is individual information is assigned. Next, newspapers A, B, C, ...
A newspaper data identifier for identifying which of the newspaper data is assigned is assigned. Further, the data of the packet position to be used is arranged at the position following it. That is, the code indicating which of the positions 1 to 15 the packet data is assigned to is assigned here.

Further, a scramble key is assigned next. This scramble key is received by the data receiving device 6 described later, and the data scrambled by the data scrambler 14 of FIG.
Can be descrambled.

Next to the scramble key, a broadcast start time and a broadcast end time are further assigned. Next to the broadcast end time, other necessary codes can be assigned.

On the other hand, the type identification code is assigned to the head of the individual information, and the receiving device ID is assigned next to it. This receiving device ID is assigned to each data receiving device 6 of FIG. 1 placed in each home, for example. Next to this receiving device ID, the contract content of the contractor having this receiving device ID is assigned. Hereinafter, the receiving device ID and the contract content corresponding thereto are sequentially assigned.

As shown in FIG. 10, since the related information assigned to the first packet is always transmitted, the receiving side monitors this related information to obtain the scramble key of a predetermined newspaper company or the like. , The broadcast start time and end time can be detected. Further, when the data receiving device having the receiving device ID included in the individually transmitted information during the predetermined period in which the common information is not transmitted matches the contract content, the newspaper data of the predetermined newspaper company is downloaded. It becomes possible to do.

On the other hand, the newspaper data is divided into search page data and article page data. A start code is assigned to the data on the search page at the beginning (search page a). This start code is for example newspaper A
It means that the newspaper data of is started from here. Next to the start code, a newspaper data identifier is arranged. This newspaper data identifier is the newspaper publisher A,
It is a code for identifying which of B, C, ... Next to this newspaper data identifier, a type identification code for identifying the search page and the article page is assigned. And next,
Paper identification data is assigned. This paper surface identification data identifies paper surfaces (genres) such as political surface, economic surface, and sports surface.

The headline sentence is placed next to the page identification data, and then the character size and font of the headline sentence and the position data thereof are placed.
Further, next to the position data, layout data indicating whether the headline text is vertically written or horizontally written is arranged. Further, next to that, a pointer for locating a position where a detailed article corresponding to the headline is described is arranged.

The above-mentioned search page a is the format of the first packet, but the second and subsequent packets may have the format shown on the search page b. That is, in this packet, the start code and the newspaper data identifier are omitted.

On the other hand, in the article page of the newspaper data, the type identification data is arranged at the head thereof, and the layout is arranged next to it (article page a). The layout is followed by an outline, and subsequently, article data representing detailed content of the article is arranged. When the outline or article data is long and cannot be accommodated in one packet, the packet shown on the article page b is added as necessary after the article page a described above. Then, an end code is added to the end position of the article data.

FIG. 12 schematically shows the search page and the article page. The search page is, as shown in FIG.
Only the headline is displayed. On the contrary,
As shown in FIG. 7B, the article page is displayed so that not only the headline but also the outline and further detailed article can be seen. When the contractor selects a predetermined headline on the search page by clicking, for example, with a mouse, the contractor selects the headline and the outline and article corresponding to the headline are displayed as shown in FIG. 12 (b). It is designed to be.

FIG. 13 shows the overall arrangement of each packet on the search page and article page. As shown in the figure, a search page packet is arranged prior to the article page packet, and each search page packet has a pointer for enabling access to the corresponding article page. It is arranged.

The above data is transmitted from the broadcasting center 3 in FIG. 1 to the satellite 4, and further transmitted from the satellite 4 to, for example, the receiver (contractor) in each home. In each home, the signal received by the outdoor device 5 is
It is converted into a predetermined intermediate frequency signal (IF signal). This I
The F signal is input to the data receiving device 6. The data received by the data receiving device 6 is demodulated there, supplied to the recording device 7, and recorded on a recording medium such as a Minidisc (trademark) 8. The user attaches this mini disk 8 to, for example, the portable terminal device 9,
The received data can be searched from the search page and the required article page can be displayed. Alternatively, the recording device 7
It is possible to read out the data recorded in, output to the television receiver 10 and display it if necessary.

FIG. 14 shows an example of the configuration of the data receiving device 6. As shown in the figure, the IF signal input from the outdoor device 5 is supplied to the BS tuner 32. The user sets in advance the broadcast time of the newspaper data contracted to the timer circuit 34. The timer circuit 34 has a built-in clock, and when the set time arrives, C
The signal is output to the processing circuit 35 including a PU, a ROM, a RAM and the like.

The processing circuit 35, when the signal is output from the timer circuit 34, the power-on / off control circuit 3
6 is controlled to turn on the power supply circuit 37. This allows
Power is supplied from the power supply circuit 37 to each unit, and the data receiving device 6 becomes operable.

Further, at this time, the processing circuit 35 causes the BS tuner 32 via the BS tuner control circuit 31.
Control and select the channel through which the data of the newspaper company that has subscribed is transmitted. The BS tuner 32 receives the input I
The signal of the instructed channel is decoded from the F signal and output to the decoder 33. The decoder 33 decodes the data at the packet position containing the contracted newspaper data. The processing circuit 35 supplies the data decoded by the decoder 33 to the recording medium 42 via the recording medium driving circuit 41 of the recording device 7 to record the data. This recording medium 42 is
For example, it is composed of a hard disk. Alternatively, the processing circuit 35 records the output of the decoder 33 via the recording medium drive circuit 43 on the recording medium constituted by the mini disk 8, for example.

When a predetermined command is input, the processing circuit 35 reproduces the data recorded on the recording medium 42 or the mini disk 8 and supplies it to the video circuit 38 to convert it into a video signal. The signal output from the video circuit 38 is output to the television receiver 10 and displayed.
Alternatively, as described with reference to FIG. 1, by mounting the mini disk 8 in which newspaper data is recorded on the portable terminal device 9, a newspaper article can be viewed on the portable terminal device 9.

In this case, as described with reference to FIG. 12, since the newspaper data is composed of the search page and the article page, the search page (FIG. 12 (a)) is displayed first and the headline is displayed. By looking and selecting the necessary headline, the corresponding page of the article (FIG. 12B) can be displayed. Therefore, even if the display unit of the portable terminal device 9 or the television receiver 10 is small, it is possible to efficiently display information and quickly select and display a desired one.

The timer circuit 34 outputs a signal to the processing circuit 35 when a preset predetermined broadcast end time arrives. At this time, the processing circuit 35 controls the power supply circuit 37 via the power supply on / off control circuit 36 to stop the power supply to each unit. This completes the download of newspaper data.

If the user is receiving another channel at the broadcast time of the contracted newspaper data, the processing circuit 3
Reference numeral 5 causes the television receiver 10 to display a message prompting a channel change via the video circuit 38. Alternatively, a warning sound is generated. Furthermore, it is also possible to forcefully and automatically change the reception channel.

In the above description, the user is allowed to set the time at which the data receiving device 6 operates. However, when the power is on, the broadcasting of individual newspaper data included in the related information is started. If the broadcast time of the contracted newspaper data is automatically set in advance in the timer circuit by using the time and the broadcast end time, the user can set the time when the data receiving device 6 operates without the need to set the data. Even when the power of the receiving device 6 is turned off, it is possible to automatically receive the contracted newspaper data.

FIG. 15 shows the BS tuner 32 and the decoder 3
3 shows a more detailed configuration example of No. 3. The IF signal input from the outdoor device 5 is the FM demodulator 7 of the BS tuner 32.
Input to 1. A BS tuner control signal is input from the BS tuner control circuit 31 to the FM demodulator 71. The FM demodulator 71 demodulates the IF signal of the channel corresponding to the BS tuner control signal into a baseband signal and outputs it to the video signal / digital channel signal separation circuit 72. The video signal / digital channel signal separation circuit 72 separates the video signal and the digital channel signal from the input signal, and outputs the video signal to, for example, the television receiver 10 for display.

On the other hand, the digital channel signal separated by the video signal / digital channel signal separation circuit 72 is input to the 4-phase DPSK demodulator 73 and demodulated. The signal output from the 4-phase DPSK demodulator 73 is input to a digital channel signal separation circuit 74, where it is separated into a voice signal and an independent data channel signal. When the audio signal corresponds to the above-mentioned video signal, it is output to the television receiver 10.

On the other hand, the digital channel signal separation circuit 74 separates the independent data channel signal from the signal input from the 4-phase DPSK demodulator 73, and the decoder 33
To the newspaper data / related information separation circuit 81. The newspaper data / related information separation circuit 81 separates the newspaper data and the related information from the input signal, outputs the newspaper data to the data descrambler 87, and outputs the related information to the decoding circuit 82. The memory 83 has the decoder 33
Receiving device I assigned to (data receiving device 6)
D is stored in advance.

When the contract content of the receiving device ID matching the receiving device ID stored in the memory 83 is input as the related information, the decoding circuit 82 supplies the contract content to the contract condition comparing circuit 84, It is stored in the built-in memory 84A. Further, the decryption circuit 82 decrypts the scramble key transmitted as the related information (common information),
Output to the on / off switching circuit 85.

After that, when the data identifier is decoded from the inputted related information, this data identifier is supplied from the decoding circuit 82 to the contract condition comparison circuit 84.
The contract condition comparison circuit 84 changes the input data identifier to
The contract contents already stored in the memory 84A are compared. The contract contents include a data identifier of a newspaper that has been contracted in advance. The contract condition comparison circuit 84 determines that the data identifier stored in the memory 84A matches the data identifier supplied from the decoding circuit 82, unless the contract content includes payment of the contract fee and other prohibition conditions. , And outputs a control signal for switching the on / off switching circuit 85 to the on state. As a result, the scramble key output from the decoding circuit 82 is supplied to the PN generator 86 via the ON / OFF switching circuit 85.

The PN generator 86 generates a pseudo random sequence corresponding to the input scramble key. The data descrambler 87 descrambles the newspaper data supplied from the newspaper data / related information separating circuit 81 using the pseudo random sequence supplied from the PN generator 86. Then, the descrambled newspaper data is supplied to the recording device 7 and recorded in the recording medium 42 as the mini disk 8 or the hard disk as described above.

FIG. 16 shows an example of the configuration of the portable terminal device 9 for reproducing the information recorded on the mini disk 8 as described above. That is, the user mounts the mini disk 8 on the portable terminal 9 and sees the information recorded therein.

In this embodiment, the CPU 101 controls each unit to execute the process of reproducing the information recorded on the mini disk 8. ROM10
2 stores a program necessary for the CPU 101 to operate. The RAM 103 has a CPU 1
Data and the like necessary for 01 to execute various processes are stored. The VRAM (video RAM) 110 is provided with a controller 111 and a controller 112, and writing and reading are performed under the control of the CPU 101. Controller 112
A monitor 106 is connected to the VRAM 110.
An image corresponding to the bitmap data expanded in is displayed.

In addition to the mini disk 8, a hard disk (HD) 105 is connected to the interface 104 so that the data recorded in the mini disk 8 can be transferred and stored as necessary. There is.

Further, the interface 104 is connected to an input section 107 having various buttons operated when inputting various commands, and the input section 107 is connected to the input section 107.
At least a horizontal scroll button 108 operated when scrolling the characters displayed on the monitor 106 in the horizontal direction (horizontal direction) and a vertical scroll button 109 operated when scrolling the characters displayed in the vertical direction (vertical direction) are provided. ing. When one or the other end of each of these buttons 108 and 109 is pressed, the display is scrolled in that direction.

Next, the operation of the embodiment of FIG. 16 will be described with reference to the flowchart of FIG. Input section 10
By operating the predetermined buttons of 7,
When the reproduction of the information recorded on the mini disk 8 is instructed, the initial screen is displayed on the monitor 106. That is, at this time, the CPU 101 reads out the information recorded on the mini disk 8 and controls the controller 111 to control the VR.
It is expanded in the AM 110 as bitmap data. Further, the controller 112 is further controlled to control the VRAM1.
The bitmap data expanded in 10 is read and displayed on the monitor 106. This allows the monitor 106
For example, as shown in FIG. 18A, a series of sentences of a newspaper article is displayed with each line being vertically.

In this embodiment, the monitor 106 is set to 1
Articles for columns are displayed in 13 lines. 1
The column is 12 characters in this embodiment. In this article, as shown in FIG. 18D, a series of sentences is arranged in one stage, and a part of the range A is on the monitor 10.
It is displayed in 6.

If one character is represented by 16 × 16 dots, 192 dots are required because the monitor 106 displays 12 characters in the vertical direction. Also, since 13 characters are displayed in the horizontal direction, 208 dots are required. Of course, when there is a space of 1 dot or 2 dots between characters in the vertical direction or a predetermined space between characters in the horizontal direction (between lines), it corresponds to the space. Minutes, monitor 106 needs to have a larger screen.

The font size is, for example, 14 ×
In the case of 14 dots or 12 × 12 dots, it is possible to make the screen smaller than that in the case of 16 × 16 dots.

As described above, when the horizontal scroll button 108 or the vertical scroll button 109 is operated in step S2 while the sentence is displayed on the monitor 106, the process proceeds to step S3, and the scroll instruction is given in the vertical direction. It is determined whether or not there is. That is, it is determined which of the horizontal scroll button 108 and the vertical scroll button 109 has been operated. When it is determined in step S3 that the horizontal scroll button 108 has been operated, the process proceeds to step S4, and the data displayed on the monitor 106 for one line (for line scroll) or one dot (for smooth scroll) It is displayed again by advancing to the left or right.

That is, for example, the monitor 106 is now shown in FIG.
If the sentence shown in 8 (a) is displayed, V
In the RAM 110, the data in the range indicated by A in FIG. 18D is expanded as bitmap data. In this state, the horizontal scroll button 1
When the right end of 08 is operated, the CPU 101 reads new data from the mini disk 8 and the VRAM 110
18D, the bitmap data corresponding to the sentence in the range indicated by B is expanded.

The mini disk 8 has a relatively large storage capacity, but since the time required for access is relatively long, the information stored in the mini disk 8 is transferred and stored in advance in the hard disk 105 or the RAM 103. Alternatively, new data may be read from the hard disk 105 or the RAM 103 and expanded in the VRAM 110. In this way, more rapid scrolling is possible.

In this way, the VRAM 110 is stored in FIG.
When the data in the range B shown in 8 (d) is expanded, it is controlled by the controller 112 and this data is read out,
As a result of being displayed on the monitor 106, the display shown in FIG. 18B is displayed on the monitor 106.

After such a display is performed in step S4, the process proceeds to step S6, and it is determined whether or not a predetermined button of the input unit 107 is operated to command the end of the display. If the end has not been instructed yet, the process returns to step S2 and the subsequent processes are repeated. That is, in this case, if the right end of the horizontal scroll button 108 is still being operated, the data in the range C shown in FIG. 18D is read from the mini disk 8 to the VRAM 110, and the controller 111 performs the VRAM.
110 is written. Then, it is read from the VRAM 110 by the controller 112 and displayed on the monitor 106.
It is displayed as shown in FIG.

As described above, the horizontal scroll button 108
18A to 18C, the vertical line displayed on the monitor 106 is sequentially moved (scrolled) rightward as shown in FIGS. In this embodiment, the horizontal scroll is performed on a line-by-line basis, but it is also possible to perform so-called smooth scrolling on a bit-by-bit basis.

Further, for example, on the monitor 106, FIG.
If the left end of the horizontal scroll button 108 is operated while the display shown in (c) is being performed, the VRAM 11
The range expanded to 0 is the range C in FIG.
The display is sequentially switched to B and A, and the display on the monitor 106 is sequentially switched from the state shown in FIG. 18C to the state shown in FIG. 18B and further to FIG. That is, in this case, scrolling to the left is performed.

Regarding the right end and the left end of the button, in the above-mentioned embodiment, it is considered as if the paper is moved to the right or left. However, the screen is considered to be a window, and the window is moved to the right or left. You can think. In this case, the result is the opposite movement. These are related to the design concept of the terminal, and any of them can be applied to the present invention.

On the other hand, in step S3 of FIG. 17, when it is determined that the vertical scrolling is instructed, that is, when the vertical scroll button 109 is operated, the process proceeds to step S5, and the data for one screen is displayed. Just advance and redisplay.

For example, when the data in the range A shown in FIG. 19D is read and expanded in the VRAM 110, the display shown in FIG. 19A is displayed on the monitor 106. In this state, the vertical scroll button 10
When the lower end of 9 is operated, the data in the range D shown in FIG. 19D is expanded in the VRAM 110. The range D is data for one screen (13 lines) following the range A. The number of lines that can be displayed on one screen is 10
This corresponds to the horizontal width of 6, and if the horizontal width of the monitor 106 becomes larger, the number of lines that can be displayed also increases.

When the data of the range D is thus expanded in the VRAM 110, the monitor 106 is displayed in FIG.
The display as shown in FIG.

After step S5, the process proceeds to step S6,
It is determined whether or not the display end is instructed. If the end is not instructed, the process returns to step S2 again, and the subsequent processes are repeatedly executed.

For example, if the lower end of the vertical scroll button 109 is still being operated, the VRAM 110
Then, the data of the range E for one page (one screen) following the range D shown in FIG. 19D is expanded. As a result, a display as shown in FIG. 19C is displayed on the monitor 106.

In addition, for example, on the monitor 106, FIG.
When the upper end of the vertical scroll button 109 is operated in the state where the display shown in FIG.
The data in M110 is rewritten from the data in the range E shown in FIG. 19D to the data in the preceding range D. As a result, the display on the monitor 106 is switched from the state shown in FIG. 19C to the state shown in FIG. 19B. When the upper end of the vertical scroll button 109 is further operated, the bitmap data in the VRAM 110 is rewritten from the range D data in FIG. 19D to the range A data, and the display on the monitor 106 is as follows. The state shown in FIG. 19B is switched to the state shown in FIG.

Also in this case, the functions of the upper end and the lower end of the vertical scroll may have meanings in the opposite directions depending on the design concept of the terminal.

In the present invention, the number of characters in one column is
It is set according to the size (height) of the screen of the monitor 106, and is set regardless of the size (page) of paper such as A4 and B5.

As described above, in this embodiment, when the vertical scroll button 109 is operated, the screen display is switched in units of columns. That is, in this embodiment, the vertical scroll is performed in units of one screen.

This point will be further described with reference to FIG. 20. In the display method of the present invention, for example, FIG.
As shown in, the text for one screen is prepared in the vertical direction for a plurality of screens. (Of course, this is a concept.
It does not need to be prepared on the M110, and may be prepared each time.)

The range P among them is shown in FIG.
As shown in FIG. 2A, when a command to scroll up is issued while the screen is displayed on the monitor 106, FIG.
The data in the range Q (range one character lower than the range P) shown in 0 (d) is read out and displayed as shown in FIG. 20 (b). Next, the data in the range R (range one character lower than the range Q) in FIG. 20D is read out and displayed as shown in FIG.

Repeating such display switching is the basic processing of vertical scrolling, but in the embodiment of FIG. 19, the display of this transitional switching state is omitted.

That is, FIG. 21 shows the vertical scroll display method according to the embodiment of FIG. 19 and the vertical scroll principle display method side by side. In the display method by vertical scrolling in FIG. 19, as shown in FIGS. 21A to 21C, the screen is switched in units of columns every time vertical scrolling is instructed. On the other hand, according to the principle display method of vertical scrolling, as shown in FIGS. 21D to 21F, the display is not switched in units of columns (12 characters), and new characters are added one by one. The display is switched so that characters are added to the top or bottom.

As described above, when the characters are scrolled vertically in the vertical direction, the scrolling speed becomes extremely slow. On the other hand, if the display is switched in units of columns (12 characters) as in the example of FIG. 19, scrolling can be performed extremely quickly.

Of course, the display switching as shown in FIGS. 21D to 21F is performed in an extremely short time, and the text of one screen (one step) is changed to the next one screen (one step). If you switch to a sentence, for example, between 0.1 seconds and 3 seconds,
As in the example of FIG. 19, vertical scrolling can be performed quickly.

By thus displaying the transitional state during the switching between the predetermined screen (column) and the next screen (column), the user can be strongly impressed with the scroll in the vertical direction.

However, in the present invention, the vertical scroll is
21 (e) or FIG. 2 is provided so that the text on the monitor 106 can be read with a feeling similar to that when browsing articles in a paper newspaper or speed-reading.
It is not necessary for the user to read a sentence (character) in the middle of switching between a predetermined column and the next column as shown in 1 (f) (when it is necessary, horizontal scrolling may be executed). . Therefore, it is sufficient for the display during switching as long as the user can recognize that vertical scrolling is performed.

That is, in the present invention, when the vertical scroll is instructed, the scroll does not stop in the state as shown in FIG. 21 (e) or FIG. 21 (f). ), (B) or (c),
Scrolling is stopped only when all the characters (12 characters) in a predetermined column are displayed.

In addition, in vertical scrolling, in order to impress the user with the display of switching columns, instead of displaying characters, a space or line for one or several lines in the horizontal direction is provided between columns. It may be displayed and moved vertically.

It should be noted that in step S5 of FIG.
When the range to be written to AM110 is rewritten so that the lines on the original screen are slightly overlapped, the display screen is as shown in FIG.
As shown in 2.

That is, the data in the range A shown in FIG. 22D is written in the VRAM 110, and the data is displayed in the monitor 106 as shown in FIG.
In the state displayed as shown in FIG. 2 (a), when the upward scroll is commanded, the last one line of the range A (the leftmost one line of the screen) is the first line (the most screen of the screen). The data in the range F included as the right row) is stored in the VRAM1.
If the data is written in 10, the monitor 106 will be displayed in FIG.
The display as shown in 2 (b) is performed. Furthermore, if the data of the range G including the last one line of the range F in FIG. 22D as the first line is expanded in the VRAM 110 and displayed on the monitor 106, the monitor 106 will be displayed in FIG. The sentence as shown in is displayed.

As described above, in this embodiment, at least one line on the screen displayed immediately before (of course, the number of lines can be further increased) is again displayed on the newly displayed screen. Since it is displayed, it is easy to check the connection of sentences.

FIG. 23 shows still another embodiment. In this embodiment, two sentences are displayed on the monitor 106.
It is designed to be displayed in a column structure. That is, FIG.
As shown in FIG. 23A, 26 of the range J shown in FIG.
Of the sentences of the line, the sentence of the range J1 of the first 13 lines is displayed as the first half of the upper half of the monitor 106, and the remaining 13 lines
The text in the line range J2 is displayed in the lower half column.

Then, as shown in FIG.
In the state where the range J1 and the range J2 in 3 (c) are displayed in the upper stage and the lower stage on the screen respectively, if an upward vertical scroll is commanded, the data of the range K shown in FIG. Written in. The range K is composed of a range K1 of 13 rows in the first half and a range K2 of 13 rows in the latter half, and the range K1 in the first half is the same range as the range J2 in the latter half of the range J. As a result, on the monitor 106, as shown in FIG.
(J2) is displayed in the upper row and the range K2 is displayed in the lower row. Since the display is switched from the state shown in FIG. 23 (a) to the state shown in FIG. 23 (b), the stage displayed in the lower stage is moved to the upper stage.

In the state shown in FIG. 23 (b), when the downward scroll is instructed, the range K1
The row of is displayed on the lower side as the row of the range J2, and the row of the range J1 is newly displayed on the upper row.

As described above, even when two or more columns are displayed on the monitor 106, it is possible to display at least one line of characters immediately before switching after switching.

In the above embodiment, the VRAM1 is used.
Although the bitmap data for each screen is expanded on the screen of FIG. 10, when the capacity of the VRAM 110 is large, FIG. 18 (d), FIG. 19 (d), FIG. 22 (d), and FIG. 23 (c). A wide range of one screen or more, as shown in, can be expanded and stored in the VRAM 110 in advance. In this case, the display on the monitor 106 can be switched by changing the read start address.

FIG. 24 shows still another embodiment. In this embodiment, instead of the VRAM 110 and the controllers 111 and 112, a character RAM (C
A RAM) 121, controllers 122 and 123, and a character ROM (CROM) 124 are provided. Other configurations are similar to those in FIG.

That is, in this embodiment, the CRAM1
Character data (for example, JIS Kanji character code) of a character to be displayed at a corresponding position on the monitor 106 is stored at a predetermined position 21. Then, the character data stored here is converted into font data by the CROM 124, supplied to the monitor 106, and displayed. By doing so, it is sufficient to control the controller 122 with respect to the CRAM 121, normally write character data of a size of 2 bytes, and read the character data by the controller 123, so that writing and reading can be performed more quickly. It becomes possible. As a result, faster scrolling is possible.

In the above, an example of displaying the data recorded on the mini disk 8 in the portable terminal 9 has been described, but the same display method can be implemented in the data receiving device 6 shown in FIG. Of course.

While the present invention has been described above by taking the case of transmitting and displaying newspaper data as an example, the present invention can be applied to the case of transmitting and displaying character data of magazines, books, and the like. .

[0117]

As described above, according to the character display method of the present invention, during vertical scrolling, the display is switched in units of columns composed of a plurality of characters. As with the case of viewing, scrolling can be performed as if browsing or speed reading.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a data broadcasting system to which a character display method of the present invention is applied.

2 is a block diagram showing a configuration example of a broadcast center 3 in FIG.

3 is a diagram illustrating a spectrum of data input to the FM modulator 18 of FIG.

4 is a digital channel signal multiplexing circuit 1 of FIG.
6 is a diagram illustrating a format of digital channel data in FIG.

FIG. 5 is a diagram illustrating range bits in the format of FIG.

FIG. 6 is a diagram for explaining a packet format of an independent data channel.

FIG. 7 is a diagram illustrating a function of the header of FIG.

[Fig. 8] Fig. 8 is a diagram for describing a diagonal multiplexing method in an independent data channel.

9 is a diagram illustrating data recorded in a packet of an independent data channel in FIG.

FIG. 10 is a diagram illustrating packet positions forming an independent data channel.

FIG. 11 is a diagram illustrating a detailed format of a packet.

FIG. 12 is a diagram illustrating a search page and an article page.

FIG. 13 is a diagram illustrating a relationship between a search page and an article page.

14 is a block diagram showing a configuration example of a data receiving device 6 in FIG.

15 is a block diagram showing a more detailed configuration of the BS tuner 32 and the decoder 33 of FIG.

16 is a block diagram showing a configuration example of a portable terminal 9 in FIG.

17 is a flowchart illustrating the operation of the embodiment of FIG.

FIG. 18 is a diagram illustrating horizontal scrolling in step S4 of FIG.

19 is a diagram illustrating vertical scrolling in step S5 of FIG.

FIG. 20 is a diagram illustrating the principle of vertical scrolling.

FIG. 21 is a diagram comparing the principle of vertical scroll and vertical scroll of FIG. 19;

FIG. 22 is a diagram illustrating another example of vertical scrolling in step S5 of FIG.

23 is a diagram illustrating still another example of vertical scrolling in step S5 of FIG.

FIG. 24 is a block diagram showing another configuration example of the portable terminal 9 of FIG.

FIG. 25 is a diagram illustrating a configuration of a newspaper article.

[Explanation of symbols]

 1 Large-scale computer 2 Workstation 3 Broadcast center 4 Satellite 5 Outdoor device 6 Data receiving device 7 Recording device 8 Mini disk 9 Portable terminal 10 Television receiver 101 CPU 102 ROM 103 RAM 105 Hard disk 106 Monitor 108 Horizontal scroll button 109 Vertical scroll Button 110 VRAM 111, 112 Controller

Claims (4)

[Claims] 1. A plurality of lines of characters that form a sentence are displayed on the screen so that each line is vertical, and in horizontal scrolling, the lines are moved horizontally on the screen and displayed on the screen. The remaining lines following the displayed line are displayed sequentially, and when vertical scrolling, the display is switched in units of columns composed of a predetermined number of characters, and the lines displayed on the screen are changed. A character display method characterized by sequentially displaying the remaining remaining lines. 2. The character display method according to claim 1, wherein during vertical scrolling, the display is switched collectively for every number of lines corresponding to the horizontal width of the screen. 3. The character display method according to claim 1, wherein during vertical scrolling, the display is switched collectively for each line of a number slightly smaller than the number corresponding to the width of the screen. 4. The character according to claim 1, wherein during vertical scrolling, the switching state between the display of a predetermined column and the display of the next column is displayed within a relatively short time. Display method.