JPH02226536A - Video cassette recorder - Google Patents

Abstract

PURPOSE:To automatically perform recording by selecting the classification of a program even when the broadcasting time of the program desiring to record is changed by judging coincidence between detected program data and preset program data, and recording a broadcast program by a coincidence detecting signal. CONSTITUTION:Broadcast waves B1-B3,... transmitted from a broadcast station, after being received at a reception means 1 and selected at a tuner part 10, are amplified at an intermediate frequency part 11, and a video signal is regenerated at a video detecting part 12, and a voice signal is regenerated at a voice intermediate frequency part 14 and a voice detecting part 15, and outputted via a CRT and a speaker SP. A program data signal is extracted at a data signal extraction part 17, and regenerated at a regenerating part 18. Reproduced program data is inputted to a coincidence judging means 4, and coincidence with the program data set at a reservation recording setting means 3 is judged, and when the coincidence is obtained, the coincidence detecting signal is outputted from the coincidence detecting means 4, and a recorder main body 6 is driven by a recording control means 5, then, the broadcast program is recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video cassette recorder for reserved recording of broadcast programs.

[Prior Art] Conventionally, this type of video cassette recorder that schedules and records broadcast programs sets the TV channel on which the program will be broadcast and the scheduled broadcast time (start time and end time), and then sets the TV channel on which the program will be broadcast and the scheduled broadcast time (start time and end time). Recording control means was formed to record the program for a preset time.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, there is a problem that if the broadcast time of the program is changed, the desired program cannot be recorded. There was also the problem that commercials that one did not want to record were also recorded.

The present invention has been made in view of the above points, and its purpose is to automatically record the program even if the broadcast time of the program to be recorded changes, and to select the type of program. The object of the present invention is to provide a video cassette recorder capable of recording images.

[Means for Solving the Problems] The video cassette recorder of the present invention includes broadcast receiving means for receiving broadcast waves incorporating program data signals such as program codes and type codes of broadcast programs in addition to video signals and audio signals. a program data detection means for detecting the program data from the received broadcast wave signal; a reserved recording setting means for setting program data of a broadcast program to be recorded; and program data matching the set program data is detected. and a recording control means that controls the main body of the recording apparatus to record the broadcast program based on the coincidence detection signal.

Further, the second aspect of the present invention provides multi-channel access means for presetting a plurality of broadcast waves to be reserved for recording and sequentially selecting each broadcast wave to detect program data, and reserving a broadcast program using a plurality of broadcast waves. It is made to be able to be recorded.

[Function] The present invention is configured as described above, and allows a broadcast receiving means to receive a broadcast wave in which a program data signal such as a program code and a type code of a broadcast program is incorporated in addition to a video signal and an audio signal. The match determining means determines whether the program data detected by the program data detecting means matches the program data set by the reserved recording setting means, and the recording apparatus is operated according to the match detection signal to display the broadcast program. Even if the broadcast time of the program you want to record changes, it can be automatically recorded, and you can also select the type of program to record.

Further, the second aspect of the present invention provides multi-channel access means for presetting a plurality of broadcast waves to be reserved for recording and sequentially selecting each broadcast wave to detect program data, and reserving a broadcast program using a plurality of broadcast waves. This allows you to schedule recording of a desired program without having to input the broadcast wave code for which the program you want to record is broadcast (without setting a channel code).

[Embodiment] FIG. 1 shows an embodiment of the present invention, in which, in addition to the video signal Vp and the audio signal Vs, a program data signal Vd such as a program code and a type code of a broadcast program is connected to the vertical blanking line of the video signal Vp. Broadcast waves incorporated into the period Bll B2. B3・
. . . broadcast receiving means 1 for receiving, program data detecting means 2 for detecting the program data from the received broadcast wave signal, and reserved recording setting means 3 for setting the program data of the broadcast program to be recorded. , a coincidence determination means 4 that determines whether program data that matches the set program data is detected, and a recording control means 5 that controls the recording device main body 6 to record the broadcast program based on the coincidence detection signal. It is equipped with the following. In the embodiment, a plurality of broadcast waves (TV channels) B1, B2. Bi
. . . are set in advance, and each broadcast wave B1゜B2 . B3
A multi-channel access means 7 is provided to detect program data by sequentially selecting .
,B2. B) It is possible to reserve and record broadcast programs by...

Further, as shown in FIG. 2, the broadcast receiving means 1 includes a tuner section 1o that performs high-frequency amplification of a broadcast wave signal received by the antenna ANT and selects a channel, and an intermediate frequency section 11 that amplifies an intermediate frequency signal. , a video detection section 12 that reproduces the video signal Vp.
, a video amplification section 13 that amplifies the video signal Vp and outputs a drive signal for the cathode ray tube CRT, an audio intermediate frequency section 14 that extracts and amplifies the audio intermediate frequency, and an audio detection section 15 that reproduces the audio signal Vs. , a low frequency amplification unit 16 that amplifies the audio signal Vs and drives the speaker SP, and a video signal V
It is formed of a data signal extracting section 17 that extracts the data signal Vd inserted in the vertical retrace period of p, and a data reproducing section 18 that reproduces the program data sent by the data signal Vd.

The operation of the embodiment will be described below. Broadcast waves that are now on air from a broadcast station (or broadcast waves that are transmitted from a CATV station via a coaxial cable) B,, B2. B,
... is received by the broadcast receiving means 1. The broadcast receiving means 1 receives broadcast waves B1, B2. B3・
After selecting ... with the tuner 10, the intermediate frequency section 1
1, the video detection section 12 reproduces the video signal Vp, the audio intermediate frequency section 14 and the audio detection section 15 reproduce the audio signal Vs, and output the video and audio via the cathode ray tube CRT and speaker SP. It looks like this.

By the way, the broadcast wave signal is a normal N
This is a TSC TV signal, where Vp' is a video carrier wave and V
c' is a color carrier wave and Vs' is a sound carrier wave. In addition, FIG. 4(a) is an explanatory diagram showing the interlaced scanning operation, where solid lines and dotted lines indicate scanning lines, and imaginary lines indicate retrace lines (horizontal and vertical retrace lines). In Figure 4(b)
As shown by diagonal lines, blanking periods Toa and Tol:+ are provided. FIG. 5 shows the vertical blanking period T of a general video signal Vp. This shows the signal waveform of 8-12H, in which equalization pulse periods T2a and T2b are provided before and after the vertical synchronization period T, and no horizontal video signal is inserted after the equalization pulse period T2b. A period T is provided. Here, in this example, the above 8
The IH of the no-signal period T of ~12H is used as the data signal Vd.
transmission period, and program data (program code,
A frequency modulated (or pulse width modulated) signal is inserted according to the type code (...).

This program data signal Vd is extracted by the data signal extraction section 17 and reproduced by the data reproduction section 18. The reproduced program data is input to the match determining means 4, and it is determined whether it matches the program data set by the scheduled recording setting means 3. When the coincidence detection signal is output from the coincidence determination means 4, the recording apparatus main body 6 is set to a recording state by the recording control means 5, and the broadcast program is recorded. Therefore, even if the broadcast time of the program you want to record changes, it can be automatically recorded.

In addition, if a type code is transmitted as program data, it is possible to select the type and record it.For example, set a code that distinguishes program signals and commercial signals as the type code. You can choose not to record commercials if you have one.

Further, in the embodiment, the multi-channel access means 7 receives a plurality of broadcast waves B + to be scheduled for recording.

B2. B3... is set in advance, and each broadcast wave BB2. Since program data is detected by sequentially selecting B3..., multiple broadcast waves B, ,B,
.

You can schedule recording of broadcast programs by B, ..., and you can schedule recording of the desired program without entering the broadcast wave code where the program you want to record is broadcast (without setting the channel code). It has become. In addition, if a common program code is set for the news program of each broadcast wave, each broadcast wave B3
．． B2. It will be possible to schedule recording of news programs on B3... However, if there is a news program at the same time, priority will be given to broadcast waves B+, Bz, B3...
All you have to do is set it to record the news programs of...

[Effects of the Invention] The present invention is configured as described above, and allows a broadcast receiving means to receive broadcast waves in which program data signals such as program codes and type codes of broadcast programs are incorporated in addition to video signals and audio signals. Then, the match determining means determines whether the program data detected by the program data detecting means matches the program data set by the reserved recording setting means, and the recording device main body is operated by the match detection signal to perform broadcasting. The program is designed to be recorded, and even if the broadcast time of the program to be recorded changes, it can be automatically recorded, and the type of program can be selected for recording. In addition, if multiple broadcast waves to be scheduled for recording are set in advance, and a multi-channel access means is provided that sequentially selects each broadcast wave to detect program data, it is possible to schedule and record broadcast programs using multiple broadcast waves. This has the advantage that a desired program can be reserved for recording without inputting the broadcast wave code (without setting a channel code) under which the program to be recorded is broadcast.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of an embodiment of the present invention, FIG. 2 is a block circuit diagram of a main part of the same, and FIGS. 3 to 5 are explanatory diagrams of the operation of the same. 1 is a broadcast receiving means, 2 is a program data detection means, 3 is a scheduled recording setting means, 4 is a coincidence determination means, 5 is a recording control means,
Reference numeral 6 represents a recording device main body, and reference numeral 7 represents a multi-channel access means. Agent Patent Attorney Ishi 1) Chief 7th 3rd (b) ab

Claims (2)

[Claims] (1) Broadcast receiving means for receiving broadcast waves incorporating program data signals such as program codes and type codes of broadcast programs in addition to video signals and audio signals, and detecting the program data from the received broadcast wave signals. a program data detection means for setting program data of a broadcast program to be recorded; a reserved recording setting means for setting program data of a broadcast program to be recorded; a coincidence determination means for determining whether program data matching the set program data is detected;
A video cassette recorder comprising a recording control means for controlling a recording apparatus main body to record the broadcast program based on a coincidence detection signal. (2) A multi-channel access means is provided in which multiple broadcast waves to be scheduled for recording are set in advance and program data is detected by sequentially selecting each broadcast wave, making it possible to schedule recording of broadcast programs using multiple broadcast waves. Claim 1 characterized in that
The video cassette recorder described.