KR20030038856A - Apparatus and method for setting a clock automatically - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic time setting apparatus and method, wherein a current time of a timer included in a broadcast receiver such as VCR is based on time information of text data transmitted in a broadcast signal. The automatic time setting operation is performed only for a broadcast signal of a specific broadcasting station which updates and sets automatically, but provides accurate time information. Thus, the current time in a broadcast receiver such as BC is incorrectly updated with incorrect time information. It is a very useful invention that can be set in advance to prevent a fatal error that can not be performed normally scheduled recording.

Description

Apparatus and method for setting a clock automatically}

The present invention relates to an automatic time setting apparatus and method, and more particularly, to a time of text data transmitted by including a current time of a timer included in a broadcast receiver such as VCR, etc., in a broadcast signal. An automatic time setting apparatus and method for automatically updating and setting based on information.

In the vertical blanking interval (VBI) of a general broadcast signal, various broadcast information may be intermittently transmitted in the form of text data, and the broadcast information includes current time information additionally provided by the corresponding broadcasting station. Can be.

Accordingly, the broadcast receiver, such as V-Cal, may include an automatic time setting device for detecting the time information included in the broadcast signal and automatically updating and setting the current time of the timer included in the device. There will be described in detail with respect to the automatic time setting device included in the broadcast receiver as described above.

First, FIG. 1 illustrates a partial configuration of a VRC including a general automatic time setting device, and the VCR includes a broadcast channel of any one of a plurality of broadcast channels received through an antenna or the like. A tuner unit 10 for tuning and receiving a corresponding broadcast signal; A signal processor (11) for signal-processing the broadcast signal tuned and received by the tuner into an audio / video signal; A data separator 12 for separately outputting text data intermittently transmitted in a vertical blanking interval VBI of the tuned received broadcast signal; A text decoder 13 for detecting visual information from the separated text data; A microcomputer (14) for updating or setting the current time of the timer (15) and controlling the operation of the respective constituent means based on the detected time information; And a memory 16 for storing information necessary for the control operation of the microcomputer and tuning data for each broadcasting channel.

On the other hand, in the microcomputer 14, the current time counted by the timer 15 is a predetermined time set in advance, or the automatic time setting operation from the user in the state that the system power of VRC is off (Off) When the request is made or when the system power is switched from on to off, as shown in FIG. 2, the operating mode of the V-CAL is set to the automatic time setting mode (S10).

Subsequently, broadcast channel tuning data previously stored in the memory 16 is sequentially read, and each broadcast signal is tuned and received (S11). In this case, the data separator 12 transmits the tuner 10 to the tuner 10. The text data transmitted in the vertical blanking section VBI of the broadcast signal tuned and received is separated and output, and the text decoder 13 decodes the text data.

On the other hand, the microcomputer 14 checks whether current time information is detected from the decoded text data (S13). As a result of the check, when time information is detected, the microcomputer updates and sets the current time of the timer to the time detected from the broadcast signal (S14).

On the other hand, if the time information is not detected, the microcomputer 14 reads out all the plurality of tuning data previously stored in the memory 16 to determine whether the tuning operation for all broadcasting channels is completed. After confirmation (S15), the other broadcast channel is tuned until the tuning operation for all broadcast channels is completed (S16).

Therefore, when receiving a broadcast signal that is not transmitted with the time information as described above, by changing and tuning to another broadcast channel, the time information provided by the corresponding broadcasting station is detected, and using the detected time information, It will automatically update and set the current time of the broadcast receiver such as the RFID.

However, as described above, the time information detected from the broadcast signal may be provided with incorrect time information according to the circumstances of the broadcasting station. If the time information is detected based on the incorrect time information, the current time in the VRC is automatically updated. In this case, there was a problem that a fatal error occurs that prevents the user from presetting the preset recording.

Accordingly, the present invention was created to solve the above problems, and includes the current time of a timer included in a broadcast receiver such as a VCR, etc., time information of text data transmitted in a broadcast signal. And an automatic time setting device and a method for automatically updating and setting based on the broadcast signal of a specific broadcasting station providing accurate time information, so that the automatic time setting operation is performed. The purpose is.

FIG. 1 is a view illustrating some components of a VCR including a general automatic time setting device.

2 is a flowchart illustrating an operation of a general automatic time setting method.

3 is a flowchart illustrating an operation of the automatic time setting method according to the present invention;

4 is a flowchart illustrating an automatic time setting method according to another exemplary embodiment of the present invention.

※ Explanation of code for main part of drawing

10: tuner unit 11: signal processing unit

12: data separation unit 13: text decoder unit

14: Micom 15: Timer

16: memory

The automatic time setting method according to the present invention for achieving the above object comprises the steps of: separating the text data included in the broadcast signal, detecting the broadcast station identification information included in the text data transmitted; Comparing and determining whether the detected broadcasting station identification information corresponds to specific broadcasting station identification information previously stored in the apparatus; And detecting the time information included in the text data and setting the current time if the result of the determination is matched.

In addition, the automatic time setting apparatus according to the present invention comprises: separating means for separating text data transmitted in a broadcast signal; Detection means for detecting broadcast station identification information and time information included in the separated text data; And control means for comparing the detected broadcasting station identification information with the broadcasting station identification information previously stored in the apparatus, and updating the detected time information to the current time according to the comparison result. do.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the automatic time setting apparatus and method according to the present invention will be described in detail.

First, the automatic time setting apparatus according to the present invention, as described above with reference to FIG. 1, is configured to include a VCR (VCR) or the like in a broadcast receiver, and the tuner unit 10 and the signal processor are included in the VRC. 11, the data separator 12, the text decoder 13, the timer 15, the microcomputer 14, and the memory 16 may be configured to be included.

Meanwhile, the memory 16 stores and manages a plurality of broadcast channel tuning data and a specific broadcast station ID (ID) that provides accurate time information. In the microcomputer 14, the ID of a specific broadcast station stored in the memory is stored. By controlling the automatic time setting operation to be performed only for the time information of the broadcast signal in which the same broadcaster ID as the ID is detected, an accurate time setting operation is performed.

In another embodiment, the memory 16 may store and manage broadcast channel tuning data for specific broadcasting stations that provide accurate time information. In this case, the microcomputer 14 may store and manage the broadcast channel tuning data. By reading the stored broadcasting channel tuning data for the specific broadcasting stations, the correct time information provided from the broadcasting station is detected, and based on the detected time information, the current time of the timer included in the VCR is determined. By updating and setting automatically, the correct time setting operation is made. The automatic time setting method as described above will be described in detail as follows.

FIG. 3 is a flowchart illustrating an automatic time setting method according to the present invention. In the microcomputer 14, as described above, the timer (in the state in which the system power of the VRC is turned off) is turned off. When the current time counted by 15) is a predetermined time set in advance, or when a user is requested to perform an automatic time setting operation, or when the system power is switched from on to off, the time of operation of the VR is automatically timed. The setting enters the setting mode (S20).

Subsequently, broadcast channel tuning data previously stored in the memory 16 is sequentially read, and each broadcast signal is tuned and received (S21). In this case, the data separator 12 transmits to the tuner 10. The text data transmitted in the vertical blanking section VBI of the broadcast signal tuned and received is separated and output, and the text decoder 13 decodes the text data.

On the other hand, the microcomputer 14 detects the broadcaster ID transmitted in the header information of the decoded text data, and then stores the broadcaster ID previously stored in the memory, for example, the ID of a specific broadcaster that provides accurate time information. It is determined whether or not to match (S23).

If the result of the determination matches, it is checked whether current time information is detected from the decoded text data (S24). As a result of the confirmation, when time information is detected, the microcomputer updates and sets the current time of the timer to the time detected from the broadcast signal (S25).

On the other hand, if the detected broadcasting station ID does not match the specific broadcasting station ID previously stored in the memory as a result of the determination (S23), or if the time information is not detected as a result of the checking (S24), the microcomputer 14 ) Reads all the plurality of tuning data previously stored in the memory 16, checks whether the tuning operation for all the broadcasting channels is completed (S26), and until the tuning operation for all the broadcasting channels is completed. In operation S27, another broadcast channel is tuned.

Therefore, since the automatic time setting operation is performed only on the time information detected by the broadcast signal of the specific broadcasting station providing the accurate time information as described above, an accurate time setting operation is performed.

On the other hand, in the microcomputer 14, even though the tuning operation is performed on all broadcast channels as described above, if both the ID and the time information of a specific broadcast station are stored at the same time, the automatic time setting mode is set to the manual time setting. By switching to the mode, the user can input and specify the current time.

4 is a flowchart illustrating an automatic time setting method according to another embodiment of the present invention. As described above, in the microcomputer 14, the system power of the VRC is turned off. When the current time counted by the timer 15 is a predetermined time set in advance, or when a user is requested to perform an automatic time setting operation, or when the system power is switched from on to off, the operation of the VRC is performed. The mode is set to enter the automatic time setting mode (S30).

Thereafter, the broadcasting channel tuning data for ACS (Auto Clock Setting) previously stored in the memory 16, that is, the broadcasting channel tuning data corresponding to the broadcasting station providing the correct time information is read (S31), and the broadcasting signal of the corresponding broadcasting station is read. In this case, the data separation unit 12 separates and outputs the text data transmitted on the vertical blanking interval VBI of the broadcast signal tuned and received by the tuner 10. The text decoder 13 then decodes the text data.

On the other hand, the microcomputer 14 checks whether current time information is detected from the decoded text data (S34). As a result of the check, when time information is detected, the microcomputer updates and sets the current time of the timer to the time detected from the broadcast signal (S35).

On the other hand, if the time information is not detected as a result of the check (S34), the microcomputer 14, another broadcasting channel tuning data for the ACS previously stored in the memory 16, that is, another time that provides accurate time information After reading and using the broadcasting channel tuning data corresponding to the broadcasting station, after confirming that the tuning operation for all the ACS broadcasting channels is completed (S36), until the tuning operation for all the ACS broadcasting channels is completed, the other ACS The broadcast channel is tuned (S37).

Therefore, since the automatic time setting operation is performed using the time information detected from the broadcast signal of the specific broadcasting station providing the correct time information as described above, an accurate time setting operation is performed.

On the other hand, in the microcomputer 14, even if the tuning operation for all the broadcast channel for ACS as described above, if the time information is not detected, the automatic time setting mode is set to switch to the manual time setting mode, the user You can also specify the current time.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

The automatic time setting apparatus and method according to the present invention constructed and configured as described above includes the current time of a timer included in a broadcast receiver such as a VCR, etc. The automatic time setting operation is performed only for a broadcast signal of a specific broadcasting station which updates and sets automatically based on the information, and provides accurate time information. Thus, the time information of the current time in the broadcast receiver, such as BC, is incorrect. It is a very useful invention that can prevent in advance a fatal error that is incorrectly updated and set, reservation recording, etc. can not be performed normally.

Claims (10)

Separating text data included in the broadcast signal and detecting broadcast station identification information included in the text data; Comparing and determining whether the detected broadcasting station identification information corresponds to specific broadcasting station identification information previously stored in the apparatus; And And if the result of the determination matches, detecting the time information included in the text data and setting the current time. The method of claim 1, And the broadcasting station identification information is a broadcasting station ID detected from header information of text data inserted and transmitted in a vertical blanking interval of the broadcasting signal. The method of claim 1, The specific broadcasting station identification information is a unique ID assigned to a specific broadcasting station for transmitting the correct time information to the broadcast signal. The method of claim 1, If it does not match, after receiving the broadcast signal of the other channel is tuned, and repeating the steps 1 to 3 characterized in that the automatic time setting method. Separating means for separating text data transmitted in a broadcast signal; Detection means for detecting broadcast station identification information and time information included in the separated text data; And And controlling means for comparing the detected broadcasting station identification information with the broadcasting station identification information previously stored in the apparatus, and updating the detected time information to the current time according to the comparison result. Visual setting device. The method of claim 5, And the separating means separates and outputs the text data inserted and transmitted in the vertical blanking section of the broadcast signal. The method of claim 6, And the detecting means detects a broadcasting station ID from the header information of the separated text data. The method of claim 5, The control means determines that the detected time information is invalid when the detected broadcasting station identification information and the broadcasting station identification information stored in the apparatus do not coincide with each other, and tunes a broadcast signal of another channel. Automatic time setting device. Reading the broadcast channel tuning data corresponding to a specific broadcast station previously stored in the apparatus in the automatic time setting mode; Synchronizing and receiving a broadcast signal provided from the specific broadcast station using the read tuning data; Separating text data included in the tuned-received broadcast signal and detecting visual information transmitted in the text data; And And setting a current time on the basis of the detected time information. The method of claim 9, The broadcast channel tuning data is pre-stored in the apparatus to tune and receive a broadcast signal of a specific broadcast station that transmits accurate time information in a broadcast signal.