JPH0556386A - Automatic video recording method for designated broadcasting program and automatic video recording control device - Google Patents

Abstract

PURPOSE:To surely perform a video recording by preliminarily storing a part of the introduction picture information of a designated broadcasting program and performing a video recording, etc., when the part coincides with the designated broadcasting program information. CONSTITUTION:A central control part 1 receives a broadcasting program before preliminarily set video recording starting time and at the same time, prepares the setting of a sampling time when a switch comparing with a part of the introduction picture information from a reservation/timer control part 2 is turned on. When the designated time for a designated broadcasting program comes, the control part 1 commands a picture comparison part 9 to compare a received picture signal with the data accumulated in an accumulation part 8. When the coincidence is not obtained after the signal is compared with the accumulated data, the same comparison is performed several times after a few minutes. When the coincidence is not obtained, the control for a video recording is not performed. But when the signal concides with reception signal of the designated broadcasting program, the control part 1 commands a recording and reproducing part 5 to start the video recording, to temporarily stop the video recording and to terminate the video recording and commands a driving part 6 to start a driving, to temporarily stop driving and to terminate the driving.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VTR automatic recording method and a control apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, recording of a designated broadcast program by a VTR is performed on a broadcast day, a channel number to be recorded, a start time,
It is generally known that an end time is preset and input, and a timer provided in the VTR automatically starts driving the recording mechanism at the set time for recording. It is a device.

[0003]

However, in the conventional automatic recording method, since the recording starts at a preset start time, for example, the time of a broadcast program designated in advance by a baseball broadcast may shift or a special program may be delayed. When a broadcast program designated in advance by a program or the like is changed, there is an inconvenience that the recording content of the designated broadcast program is ended halfway or a completely different broadcast program is recorded.

The present invention has been made in view of these problems, and an automatic recording method of a designated broadcast program and its control capable of surely recording a predesignated broadcast program even if the broadcast time is extended or changed. To provide a device.

[0005]

In order to achieve the above object, the inventor of the present invention uses an image to stop the image when scanning or to prevent the screen from being disturbed when fast-forwarding. When a transmission signal sent from the broadcasting station is received using the memory for video, a part of the front image information of the broadcast program specified in advance is stored in the image memory in advance, and the specified broadcast program is stored. Attention was paid to driving the recording of the broadcast program only when the received signal at the time of receiving and part of the pre-stored image information which was stored in advance were compared and coincided.

That is, the gist of the present invention is to automatically start recording a designated broadcast program by a recording start operation.
By using an automatic recording device that automatically stops recording at the end of this designated broadcast program, (1) a part of the front image information of the designated broadcast program is stored in advance, and (2) The received signal when the transmitted signal sent from the broadcasting station is received is compared with a part of the stored front image information, and when they match, the recording of the designated broadcast program is automatically started. This is a method of automatically recording a specified broadcast program characterized by the following: (3) The specified broadcast when the received signal at the time of reception and a part of the stored front image information are compared and match. This is an automatic recording method for designated broadcast programs, which is characterized by automatically stopping the recording of the program. (4) The received signal at the time of reception and a part of the stored front image information are recorded. The recording of the designated broadcast program was automatically stopped when compared and matched. It is a featured automatic recording method for designated broadcast programs, including a reservation timer management unit that reserves broadcast programs and sets timers, a switching operation unit that switches between manual and remote control, and transmissions sent from the broadcasting station. A TV tuner section for receiving signals, a recording / reproducing section for recording or reproducing, a driving section for controlling recording or reproducing, a signal system input / output section for inputting / outputting signals, a reservation timer managing section, An automatic recording control device for a designated broadcast program, comprising: a switching operation part, a TV tuner part, a recording / reproducing part, a drive part, and a central control part for controlling a signal system input / output part.
A memory management unit that includes means for A / D converting the image signal from the tuner unit, (6) a storage unit that stores the A / D converted data, and (7) an image signal from the TV tuner unit And an image comparison unit that compares the data in the storage unit,
(8) In the automatic recording control device for a designated broadcast program, the central control unit has a function of controlling the start, stop, and end of recording when the comparisons in the image comparison unit match. is there.

[0007] In the storage of a part of the front image information shown in (1) above, it is not necessary to store a part of all the front image information. It may be alone.

When the received signal at the time of reception shown in (2) above and a part of the stored front image information are compared and coincident,
It does not have to be an exact match with the entire stored screen portion. Therefore, even if a temporary change occurs in the received screen, it can be determined that they match.

When the received signal shown in the above (2), (3) and (4) and a part of the pre-stored image information stored in advance are matched, not only the automatic start but also the temporary stop By providing the function, for example, unnecessary recording can be prevented, and by providing the function of automatically ending, a function of automatically starting and ending automatically by a part of the front image information Can also be provided.

The memory management section shown in (5) above is an A / D
With a built-in converter, the received signal is converted to a digital value based on commands from the central controller and sent to the storage unit, or the digital value stored in the storage unit is read and converted to an analog value. It also has a function of managing the memory of the storage unit, which is used as data for comparison with the received signal.

The storage unit shown in (6) above may be any storage unit for storing a part of several screens of the front image information, and may have a capacity capable of being compared with the received signal. Further, it is also possible to provide a storage unit for storing a part of the stored front image information, and omit storing a part of the front image information of the designated broadcast program in advance.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG.

The automatic recording control device receives a reservation / timer management unit 2 including a switch for time and reservation, a switching operation unit 3 for controlling a manual operation and a remote control, and an antenna 4a for receiving a signal from a broadcasting station. The RF signal 4b is tuned and output as it is as the RF signal 4b, and the image signal 4
c and a TV tuner section 4 for outputting an audio signal 4d, and a TV
The recording / reproducing unit 5 having a function of recording the image signal 4c and the audio signal 4d from the tuner unit 4 or reproducing the contents of the video tape 5d, the drive unit 6 for driving the video tape 5d, and the image signal 4c A memory management unit 7 that manages A / D conversion and the capacity of the A / D converted digital value;
A storage unit 8 for storing the image signal converted into a digital value, an image comparison unit 9 for comparing the contents of the storage unit 8 with the received image signal 4c, a display 10a, an RF signal 4b, an image signal 4c, and an audio signal. Signal input / output unit 10 for inputting / outputting 4d
And a central control unit 1 that controls all of these. Here, the reservation / timer management unit 2, the switching operation unit 3, the TV tuner unit 4, the recording / reproducing unit 5, and the driving unit 6 are the same as the conventional ones, and therefore the description thereof will be omitted.

The main functions of the central control unit 1 in this embodiment are to store a part of the front image information of the designated broadcast program desired to be preset in the storage unit, and to store the stored data and the received data. When they match, the recording / playback section 5 is instructed to start recording, temporarily stop recording, and end recording, and the driving section 6 is driven to start and drive in association with the control to the recording / playback section 5. It issues a stop and drive end command.

Next, a method of recording a broadcast program designated in advance will be described centering on the central controller 1. First, when a broadcast program to be recorded first is recorded, the broadcast day, channel number, start time and end time of the program to be recorded are input from the reservation / timer management unit 2. When the start time of the designated broadcast program arrives in this state, the central control unit 1 sets the vertical blanking interval for each screen of a part of the front image information of several screens (video of 5 screens in this embodiment). The memory management unit 7 uses the trigger to collect the luminance signal on the horizontal scanning line.
The A / D converter 7a converts the collected data into a digital value and stores it in the storage unit 8. Then, a recording start signal is sent to the recording / reproducing section 5 and the driving section 6 in order to record the designated broadcast program. The recording / reproducing unit 5 and the driving unit 6 which have received the recording start signal can start recording the designated broadcast program.

Next, when it is desired to record a broadcast program corresponding to a part of the front image information stored in the storage unit 8, the reservation / timer management unit 2 broadcast day of the program to be recorded,
In addition to setting the channel number, start time, and end time, a switch (not shown) for comparing with a part of the front image information is turned on.

Then, the central control unit 1 sets the preset recording start time before the preset recording start time based on that a switch for comparing a part of the front image information from the reservation / timer management unit 2 is turned on. To receive a broadcast program from (2 minutes before in this embodiment), detect and collect a luminance signal for each screen of the received signal, and at the same time, compare with the preset broadcast program data. Prepare to set the sampling time of. At the same time, the memory management unit 7 is instructed to read a part of the pre-image information stored in advance as digital values from the storage unit 8 and convert it into an analog value. If the designated time of the designated broadcast program arrives in this state, the image comparison unit 9 is instructed to compare the received image signal with the image signal of the storage unit 8. If the data stored in the storage unit 8 does not match and the data do not match, the same comparison is performed several times (about 10 minutes in this embodiment) several times (three times in this embodiment), and when the data does not match. Does not control recording. If the received signal of the designated broadcast program is compared and coincident with the received signal, the recording / reproducing unit 5 is instructed to start recording, temporarily stop recording, and end recording, and in association with this command, to the drive unit 6. , Drive start, drive suspension, and drive end commands are issued.

The data to be compared need not have the same luminance signal at the same position on one screen, and may be substantially the same when compared on the entire screen.

[0019]

As described above, according to the present invention,
Part of the front image information of the broadcast program to be recorded is stored, and recording is started when it substantially matches the part of the front image information of the actually received designated broadcast program. , It is possible to reliably detect and record a preset broadcast program based on a part of the front image information of the desired broadcast program without adding any special signal to the signal on the transmission side, and it is unnecessary. It is possible to achieve a very useful effect that it is possible to perform control not to record various received signals.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Description of symbols] 1 central control unit 2 reservation / timer management unit 3 switching operation unit 4 TV tuner unit 4a antenna 4b RF signal 4c image signal 4d audio signal 5 recording / playback unit 5d video tape 6 drive unit 7 memory management unit 7a A / D conversion unit 8 Storage unit 9 Image comparison unit 10 Signal system input / output unit

Claims (4)

[Claims] 1. A designated broadcast program is previously set by using an automatic recording device which automatically starts recording of a designated broadcast program by a recording start operation and automatically stops recording at the end of the designated broadcast program. Part of the front image information is stored, and the received signal when the transmission signal sent from the broadcasting station is received is compared with a part of the stored front image information. An automatic recording method for a designated broadcast program, characterized in that recording of the designated broadcast program is automatically started when they match. 2. The recording of the designated broadcast program is automatically stopped when the received signal when received and a part of the stored front image information are compared and coincident with each other. The automatic recording method for a designated broadcast program according to claim 1. 3. The recording of the designated broadcast program is automatically terminated when the received signal at the time of reception and a part of the stored front image information are compared and coincident with each other. The automatic recording method for a designated broadcast program according to claim 1. 4. A reservation timer management unit for reserving a broadcast program and setting a timer, a switching operation unit for switching between manual and remote control, and a TV tuner unit for receiving a transmission signal sent from the broadcasting station side. , A recording / reproducing unit for recording or reproducing, a driving unit for controlling recording or reproducing, a signal system input / output unit for inputting / outputting a signal, a reservation timer management unit, a switching operation unit, a TV tuner unit, An automatic recording control apparatus for a designated broadcast program, comprising: a recording / reproducing section, a driving section, and a central control section for controlling a signal system input / output section, and including means for A / D converting an image signal from the TV tuner section. A memory management unit, a storage unit that stores the A / D converted data, an image comparison unit that compares the image signal from the TV tuner unit with the data of the storage unit, and the image comparison unit in the central control unit. Ratio in parts An automatic recording control apparatus for a designated broadcast program, which is provided with a function of controlling start, stop, and end of recording when the comparisons match.