JPH05347085A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To realize the smooth retrieval of a video recording program by recording PDC data when the program is broardcasted on a part of a tape previously instead of a usual VISS signal, by using data, concuring a VTR corresponding to a PDC service started in England recently. CONSTITUTION:At a recording time, the PDC data contained into a video signal outputted from a video input part 11 is decoded by a PDC data decoding part 12 and the data is recorded on a magnetic tape with the video signal by a magnetic recording and reproducing part 13. Then, at a program retrieving time, when e. g. sport is specified by an operation part 15, by a PDC data decision part 16 receiving the instruction, the tape is rewound or fast-feeded till the PDC data from the magnetic recording and reproducing part 13 contains the sport is detected with a tape running control part 17 and when detected, the instruction of reproducing is issued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a magnetic field capable of decoding the information of a program which is sent and broadcast during the vertical blanking period of a video signal, such as the Program Delivery Control service recently started in the United Kingdom. The present invention relates to a recording / reproducing device.

[0002]

2. Description of the Related Art In recent years, magnetic recording / reproducing devices have become widespread all over the world, and since the image quality in a long-time recording mode has improved, many programs have been recorded on a single tape. There is a demand for a method of searching for recorded programs with good performance.

A conventional magnetic recording / reproducing apparatus will be described below. FIG. 2 is a block diagram of a conventional magnetic recording / reproducing apparatus. In FIG. 2, reference numeral 21 is a video input unit for inputting a video signal. 22 is VIS when recording is started
It is a VISS signal write command unit that commands the writing of the S signal. A VSS signal generator 23 generates a VISS signal according to a command from the VISS signal write command unit 22. 24 is a video input from the video input unit 21 and VIS
This is a magnetic recording / reproducing unit for recording / reproducing the VISS signal generated by the S signal generating unit 23 on the magnetic tape. An image output unit 25 outputs the image reproduced by the magnetic recording / reproducing unit 24. Reference numeral 26 is an operation unit for performing an operation for searching the video recorded on the magnetic tape. Reference numeral 27 is a VISS signal determination unit that detects a VISS signal from the signal reproduced by the magnetic recording / reproducing unit 24 according to a command from the operation unit 26 and issues a command to the tape running control unit. Reference numeral 28 is a tape running control unit for fast-forwarding and rewinding the tape in response to a command from the VISS signal determination unit 27.

The operation of the magnetic recording / reproducing apparatus having the above structure will be described below.

First, when recording is started, the VISS signal writing command unit 22 commands the VISS signal generation unit 23 to generate a VISS signal. VISS signal generator 23
According to the command of the VISS signal writing command unit 22
The ISS signal is generated, and the magnetic recording / reproducing unit 24 records the video signal coming from the video input unit 21 and the VISS signal coming from the VISS signal generating unit 23 on the magnetic tape.

Next, when recording is finished and the recorded program is searched, a search operation is performed on the operation unit 26.
The operation unit 26 issues a search command to the VISS signal determination unit 27, and the VISS signal determination unit 27 detects the set number of VISS signals in the signals coming from the magnetic recording / reproducing unit 24 until the tape running control unit 28 is detected. Continue to rewind or fast forward command. When the VISS signal determination unit 27 detects the set number of VISS signals in the signal from the magnetic recording / reproducing unit 24, it issues a reproduction command to the tape running unit 28, and the tape running unit 28 starts playing.

[0007]

However, in the above-mentioned conventional configuration, there is a problem in that it is not possible to find the index of the program to be searched, so that it is impossible to find the program smoothly.

The present invention solves the above-mentioned conventional problems. Instead of searching for a program by a VISS signal,
The data included in the video when the program is broadcast is recorded on a part of the tape, and the program is searched by using the data.

[0009]

In order to achieve this object, the magnetic recording / reproducing apparatus of the present invention uses Program Del defined in the European EBU standard (Tech.3262-E) from the input video.
A PDC data decryption unit that decrypts ivery Control System data (hereinafter referred to as PDC data), a magnetic recording / reproduction unit that records / reproduces the PDC data and the image decrypted by the PDC data decryption unit on a magnetic tape, and a magnetic recording / reproduction unit. A PDC data determination unit for performing a cue using the reproduced PDC data is provided.

[0010]

With this configuration, when searching for a recorded program, the PDC data when the program was broadcast is recorded on a part of the tape, and the program is used to find the beginning of the program. It is the one to try.

[0011]

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

In FIG. 1, 11 is a video input unit for inputting a video signal, 12 is a PDC data decoding unit for decoding PDC data from the video input from the video input unit 11, and 13 is a video input unit 11 Input video and PD
Reference numeral 14 is a magnetic recording / reproducing unit for recording / reproducing the PDC data decoded by the C data decoding unit 12 on a magnetic tape, 14 is a video output unit for outputting the video reproduced by the magnetic recording / reproducing unit 13, and 15 is a magnetic tape. Reference numeral 16 denotes a PDC data determination unit for performing a search operation of the video recorded on the disc, and comparing the operation command from the operation unit 15 with the PDC data from the magnetic recording / reproducing unit 13 and issuing a command to the tape running control unit 17. Reference numeral 17 denotes a tape running control unit that fast-forwards and rewinds the tape according to a command from the PDC data determination unit 16.

The operation of the magnetic recording / reproducing apparatus configured as described above will be described with reference to FIG.

First, when recording is started, the video input section 11
The PDC data included in the video signal output from the
The C data decoding unit 12 decodes the result and sends the result to the magnetic recording / reproducing unit 13. The magnetic recording / reproducing unit 13 includes a video input unit 11
The incoming video signal and the PDC data coming from the PDC data decoding unit 12 are recorded on the magnetic tape.

Next, when the recorded program is ended and the recorded program is searched, each item of the PDC data can be searched. For example, the case where the program type is searched will be described below. .. In addition, PDC
The contents of the data are shown in FIG.

When a program type (for example, sports) is designated on the operating section 15, the operating section 15 instructs the PDC data judging section 16 to search for a program of the designated type,
The PDC data determination unit 16 issues a command to the tape running control unit 17 to rewind or fast-forward the tape until it detects that the PDC data coming from the magnetic recording / playback unit 13 includes the designated program type. .. When the PDC data determination unit 16 detects that the PDC data coming from the magnetic recording / playback unit 13 includes the designated program type, it issues a command to the tape running control unit 17 to play back, and the tape running control unit 17 starts playing.

As described above, according to this embodiment, the PDC data decoding section for decoding PDC data from the input video, and the magnetic recording for recording / reproducing the PDC data and the video decoded by the PDC data decoding section on the magnetic tape. By providing a reproducing unit and a PDC data determining unit for performing a cue using the PDC data reproduced by the magnetic recording / reproducing unit, it is possible to search for a program by designating a program type.

Although the search by program type has been described in the above embodiment, it goes without saying that a search by program label or voice may be performed instead of the program type.

[0019]

As described above, according to the present invention, a PDC data decoding unit for decoding PDC data from an input video and a PD
A magnetic recording / reproducing unit for recording / reproducing PDC data and an image decoded by the C data decoding unit on the magnetic tape, and a search using the PDC data reproduced by the magnetic recording / reproducing unit P
By providing the DC data determination unit, when searching for a recorded program, the PDC data when the program is broadcast is recorded on a part of the tape, and a smoother program can be created by using it. It is possible to realize an excellent magnetic recording / reproducing apparatus capable of performing a search.

[Brief description of drawings]

FIG. 1 is a block diagram of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional magnetic recording / reproducing device.

FIG. 3 is a schematic diagram showing the contents of PDC data.

[Explanation of symbols]

 11 video input unit 12 PDC data decoding unit 13 magnetic recording / reproducing unit 14 video output unit 15 operation unit 16 PDC data determination unit 17 tape running control unit

Claims (1)

[Claims] 1. A video input unit for inputting a video signal, a data decoding unit for decoding digital data relating to the video contained in the video input from the video input unit, and a video input from the video input unit. A magnetic recording / reproducing unit for recording / reproducing the data decoded by the data decoding unit on a magnetic tape, a video output unit for outputting the video reproduced by the magnetic recording / reproducing unit, and a search operation for the video recorded on the magnetic tape. An operation unit for performing the above, a data determination unit for issuing a command to the tape running unit by comparing a search command from the operation unit and data from the magnetic recording / reproducing unit, and fast forward / rewind of the tape by the command from the data determination unit. A magnetic recording / reproducing apparatus comprising: a tape running control unit for performing the operation.