JPS61257025A - Receiver - Google Patents

Abstract

PURPOSE:To attain automatic reception of a desired broadcast over plural channels by changing over and searching reception channels in time division. CONSTITUTION:A key device 6 is operated, a data such as a transmission station of a desired broadcast of plural channels to be subject to reserved video recording, date and time is stored in a control circuit 7. A reception channel of a tuner 2 is changed over at several sec each and the search state is applied. In the control circuit 7, the additional signal detected from video signal Sv and the data of the desired broadcast stored in advance by a the key device 6 are compared. So long as there is no coincident data, the changeover of the reception channel of the tuner 2 is conducted sequentially. When there is a coincident data, the reception channel of the tuner 2 is fixed to the channel at that time, the VTR is brought into the video recording state and the broadcast at that time is subject to video recording. when the broadcast is finished, the recording state is released, the reception channel of the tuner 2 is switched sequentially and the similar operation is repeated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a receiving device that receives all television broadcast signals to which additional signals such as a transmitting station identification signal and date and time information signals are added.

[Summary of the invention]

The present invention has a receiving device that receives a television broadcast signal to which a transmitting station identification signal and additional signals such as date and time information signals are added, and searches by switching reception channels in a time-sharing manner. This is a book that allows you to automatically receive desired broadcasts across multiple channels.

[Conventional technology]

In a VTR (video recorder), a recording reservation is generally made by setting the recording state to start at the date and time listed in the program guide.

However, such a recording reservation method is meaningless because the desired broadcast cannot be recorded when the broadcast time changes frequently.

Therefore, a video program system has been proposed. Additional signals such as a transmitting station identification signal, date, and time information signals are added to, for example, the vertical retrace interval of a television broadcast signal, and these additional signals can be used for recording, etc.

For example, it is determined from the additional signal whether the broadcast is a reserved broadcast or not, and if the broadcast is a reserved broadcast, the VTR is placed in a recording state.

[Problem that the invention seeks to solve]

Thus, according to the video program system;
To reliably reserve and record a desired broadcast even when there are many changes in broadcast time. However, in the conventional system, the tuner is fixed to the reception state of a specific channel, and it is not possible to deal with the case where the desired broadcast for scheduled recording is multiple and spans multiple channels.

In view of these points, the present invention enables automatic reception of desired broadcasts over a plurality of channels, and enables, for example, scheduled recording.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention switches reception channels in a time-division manner. Then, the transmitting station identification signal and date detected from the received television broadcast signal,
An additional signal such as a time information signal is compared with a preset reservation signal corresponding to a desired broadcast, and the desired broadcast is automatically received based on this comparison signal.

[Operation] By switching the reception channel in a time-division manner,
For example, even when a plurality of desired broadcasts for scheduled recording span multiple channels, each desired broadcast is automatically received, and the scheduled recording is performed satisfactorily.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, (1) is the antenna, (2) is the tuner, and the reception channel of the tuner (2) is the tuning circuit (3).
It can be switched by K. The intermediate frequency signal from the tuner (2) is sent to the video detection circuit (5) via the intermediate frequency amplifier (4).
)K is supplied, and the video signal Sv is taken out. For example, additional signals such as a transmitting station identification signal, date, time information signal, etc. are added to a predetermined horizontal section of the vertical retrace section of the video signal Sv.

Further, (6) is a key device, which is connected to the control circuit (7). When the user operates this Φ-device (6), data on the transmitting station, date, and time of the desired broadcast to be reserved for recording are stored in the control circuit (7) as a reservation signal.

The nine-channel selection circuit (3) described above is controlled by the control circuit (7), and when the desired broadcast scheduled for recording has multiple channels, the receiving channel of the tuner (2) sequentially selects the multiple channels. For example, it may be switched every few seconds.

Further, the video signal SV from the video detection circuit (5) is supplied to a control circuit (7), and an additional signal is detected from the video signal Sv in this control circuit (7). In this control circuit (7), the detected additional signal and the key device (6)
), the data of the transmitting station, date, and time of the nine desired broadcasts are compared, and if they match, the tuning circuit (3) is controlled and the receiving channel of the tuner (2) is changed. It is fixed to the channel at that time, and the VTR is placed in a recording state.Although not mentioned above, since the same additional signal is added to the video signal of the same broadcast,
Once the receiving channel is fixed and the VTR is placed in a recording state, that state continues until the current broadcast ends.

Then, when the broadcast ends, the recording state of the VTR is canceled and the receiving channel is switched back to its original state.

In the figure, (8) means that the luminance signal is modulated by N and K
, a recording processing circuit that performs processing on the video signal Sv such as low-frequency conversion of color signals, (9) a recording amplifier, α1 a recording magnetic head, and αη a magnetic tape.

In the above configuration, when the user fully operates the key device (6), data on the transmitting station, month, date, and time of the desired broadcast over multiple channels to be reserved for recording is transmitted to the control circuit (
7), the receiving channel of the tuner (2) is sequentially switched to the plurality of channels, for example, every few seconds, resulting in a so-called search state.

In the control circuit (7), the additional signal detected from the video signal Sv is compared with the data of the desired broadcast stored in advance by the key device (6). Unless there is a match, the reception channels of the tuner (2) are sequentially switched. If they match, the receiving channel of the tuner (2) is fixed to the channel at that time, and the VTR
is set to a recording state, and the broadcast at that time is recorded. When the broadcast is finished, the recording state is canceled and the receiving channel of the tuner (2) is switched again from time to time.

Thereafter, the same operation is repeated, and the desired broadcasting over a plurality of channels is successfully scheduled for recording.

In the above embodiment, the data of the desired broadcast is input into the control circuit (7) using the key device (6), but for example, the data is displayed as a bar code in the program guide corresponding to each broadcast. If so, input using a barcode reading device is also possible.

Further, in the above-described embodiment, the receiving channel of the tuner (2) is switched only to the channel of the desired broadcast inputted by the key device (6), but it is also possible to switch all channels sequentially.

Moreover, although the above-mentioned embodiment is an example in which the present invention is applied to a VTR, it can be similarly applied to a television receiver.

〔Effect of the invention〕

According to the present invention described above, since the reception channels of the tuner are switched and searched in a time-division manner, it is possible to automatically receive a desired broadcast over a plurality of channels.

[Brief explanation of drawings]

The figure is a block diagram showing one embodiment of the present invention. (2J is a tuner, (3) is a tuning circuit, (6) is a key device, and (7) is a control circuit.

Claims (1)

[Claims] In a device that receives a television broadcast signal to which additional signals such as a transmitting station identification signal and date and time information signals are added, the reception channel is switched in a time-division manner, and the detected additional signals and A receiving device that compares a reservation signal corresponding to a preset desired broadcast and automatically receives the desired broadcast based on this comparison signal.