JPH05303829A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To provide a magnetic recording and reproducing device which has no special need to realize a bilingual broadcasting by automatically voice- switching in accordance with the voice modes of broadcasting received signals and reproduced signals. CONSTITUTION:When a television broadcasting receiver section 11 receives a bilingual broadcasting, it indicates to a broadcasting control section 18 that the broadcasting is in bilingual, asks a voice signal recording and reproducing control section 12 to set an L ch for main voices and an R ch for auxiliary voices and outputs them. The section 12 records voice signals from the section 11 to a video tape 13 during a voice signal recording and also outputs them to an automatic voice switching control section 16. Moreover, during a reproducing, reproduced signals from the tape 13 are transmitted to the section 16. The section 16 switches to main voices if the broadcasting is in bilingual using the control of a voice switching operation section 15 and the voice mode information from the section 18 and if it is other than a bilingual broadcasting mode, automatically puts the operations back to the original condition and transmits to an external output control section 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is equipped with a receiving apparatus compatible with audio multiplex broadcasting of television broadcasting, and is effective for use in a video tape recorder (hereinafter referred to as VTR) capable of recording and reproducing the received broadcasting. The present invention relates to a recording / reproducing device.

[0002]

2. Description of the Related Art In recent years, along with the spread of VTRs, there has been a demand for functions that are easy to understand and easy to use.
The same applies to the voice switching function, which is one of the functions that I still don't know how to use. When receiving a bilingual broadcast, in the case of TV, only the main sound is automatically selected and heard, but in the case of VTR, the main sound is heard from the Lch and the sub sound is heard from the Rch. Since it is almost unthinkable to listen to both the main sound and the sub sound at the same time in a bilingual broadcast, a sound switching operation is required to hear only the main sound or only the sub sound. Since both the main voice and the sub voice are recorded when the VTR is recorded, a similar voice switching operation is required when the tape is reproduced. Furthermore, when the bilingual program is over, a voice switching operation is required again to restore the normal voice state. Thus, when receiving or recording / reproducing a bilingual broadcast, a voice switching operation is required at the beginning and end of the program.

A conventional VTR will be described below. FIG. 5 is a block diagram showing a configuration relating to recording / reproduction of audio signals of audio multiplex broadcasting in a conventional VTR. In FIG. 5, reference numeral 41 is a television broadcast receiving unit compatible with audio multiplex broadcasting. An audio signal recording / reproducing control unit 42 converts the audio signal received by the television broadcast receiving unit 41 into a video tape 4
3 or the information already recorded on the video tape 43 is reproduced and sent as an audio signal to the audio switching control unit 46. A video tape 43 is a magnetic recording medium for recording audio signals and the like. A display unit 44 displays that the television broadcast receiving unit 41 is receiving a bilingual broadcast. Reference numeral 45 is a voice switching operation unit, which is operated to select and switch voice Lch or Rch. 46
Is a voice switching control unit, which can select both the Lch and Rch voice signals or only the Lch or Rch voice signal under the control of the voice switching operation unit 45. 47 is an external output control unit,
The audio signal from the audio switching control unit 46 is output to the outside.

The operation of the control unit for recording / reproducing audio multiplex broadcasts configured as described above will be described below. First, the television broadcast receiving unit 41 receives a television broadcast signal. If the received television broadcast signal is a bilingual broadcast, the display unit 44 is controlled to indicate that it is bilingual, and the main audio is set to Lch to the audio signal recording / reproducing control unit 42. Sound is set to Rch and transmitted. In the audio signal recording / reproducing control unit 42, when recording the audio signal, the audio signal from the television broadcast receiving unit 41 is recorded on the video tape 43 and is sent to the audio switching control unit 46, or when the audio signal is reproduced, the video signal is reproduced. The reproduction signal from the tape 43 is sent to the audio switching control unit 46 as an audio signal. When recording a bilingual broadcast, the main audio is recorded in the Lch recording portion of the audio signal of the video tape 43 and the sub audio is recorded in the Rch recording portion.

This state is shown in FIG. As shown in FIG. 3, when receiving a bilingual broadcast or playing a tape recorded with a bilingual broadcast, the audio signal output from the audio signal recording / playback control unit 42 is Lch. Becomes the main audio signal and Rch becomes the sub audio signal. In the voice switching control unit 46, the voice switching operation unit 4
Under the voice switching operation control from 5, the voice selection operation is performed on the voice signal from the voice signal recording / reproducing control unit 42, and the voice signal is sent to the external output control unit 47.

[0006]

However, in the above conventional configuration, when the bilingual broadcast is being received or the video tape recording the bilingual broadcast is being reproduced, the main audio from the Lch is transmitted. However, the sub-audio is heard from the Rch. Therefore, there is a problem that a voice switching operation is required to hear only the main audio or the sub-audio.

The present invention solves the above-mentioned problems of the prior art by selecting the main audio when receiving a bilingual broadcast or when playing a video tape recording a bilingual broadcast. The purpose is to provide a magnetic recording / reproducing apparatus that does not need to be particularly conscious of bilingual broadcasting, by automatically performing audio switching control such that it automatically returns to the original state when it becomes a state other than bilingual broadcasting. To do.

[0008]

In order to achieve this object, the VTR of the present invention is a receiving device for television broadcasting and supports audio multiplex broadcasting, and identifies a broadcasting mode of audio signals such as stereo broadcasting and bilingual broadcasting. A broadcast receiver having a function to
A specific pattern indicating the broadcast mode before the change and the broadcast mode after the change is indicated by the combination of 0 or 1 of the control signal based on the VHS standard when the broadcast mode of the audio signal being received changes. A control signal recording control section for setting and recording, and a reproduction control signal pattern identification for identifying 0 or 1 of the reproduction control signal at the time of reproduction to identify the specific pattern described above to recognize the audio mode of the portion being reproduced. And a voice switching control unit for automatically switching the voice according to the voice mode of the broadcast reception signal or the reproduction signal.

[0009]

With this configuration, when a television broadcast is being received, the broadcast mode is recognized by the broadcast mode identification information from the broadcast receiving unit, and if it is a bilingual broadcast, the voice switching control unit automatically switches the voice. Can be switched to the main audio, and the audio can be automatically switched back to the original state when the broadcasting other than the bilingual broadcasting is started. Furthermore, when recording on a video tape, a specific pattern of 0 or 1 indicating that the broadcast mode has changed is recorded in the control signal, so that when the video tape is reproduced, 0 or 1 of the control signal is recorded. By identifying the pattern, it is possible to recognize the broadcast mode of the recorded audio signal, and when playing back the video tape, the audio switching control is automatically performed according to the broadcast mode as when receiving a TV broadcast. It can be performed.

[0010]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 11 is a television broadcast receiving unit compatible with audio multiplex broadcasting. An audio signal recording / reproducing control unit 12 records an audio signal received by the television broadcast receiving unit 11 on a video tape 13 or a video tape 13
The information already recorded in is reproduced and sent as an audio signal to the audio switching control unit 16. A video tape 13 is a magnetic recording medium for recording audio signals, control signals and the like. Reference numeral 14 denotes a display unit, which indicates that it is in two languages. Reference numeral 15 is a voice switching operation unit, which is a voice Lch.
Alternatively, it is operated when selecting and switching Rch. 1
6 is an automatic voice switching control unit, which is a voice switching operation unit 1.
It is possible to select both the Lch and Rch audio signals or to select only one of the Lch and Rch audio signals by the control from the control unit 5 and further, by the audio mode information from the broadcast mode control unit 18. If it is a multilingual broadcast, it automatically switches to the main audio and automatically returns to the original state when it enters a broadcast mode other than bilingual.
An external output control unit 17 is an automatic voice switching control unit 16
The audio signal from is output to the outside. Reference numeral 18 denotes a broadcast mode control unit, which sends identification information from the reproduction control signal pattern identification unit 19 during reproduction depending on the audio signal recording / reproduction mode, and a television broadcast reception unit during reception of a television broadcast. Broadcast mode information from 11 is transmitted. Reference numeral 19 denotes a reproduction control signal pattern identification section that identifies a pattern sequence of 0 or 1 of the control signal when reproduced and identifies the broadcast mode of the recorded audio. Reference numeral 20 denotes a control signal recording control section, which is controlled by the audio signal recording / reproducing control section 12 to control the video tape 13
When recording an audio signal, a specific pattern of 0 or 1 is simultaneously recorded in the control signal according to the broadcast mode information from the broadcast mode control unit 18.

The operation of the recording / reproducing control unit of the audio multiplex broadcasting configured as described above will be described with reference to FIG. First, the television broadcast receiving unit 11 receives a television broadcast signal. If the received television broadcast signal is a bilingual broadcast, it indicates to the broadcast mode control unit 18 that it is bilingual, and sets the main audio to Lch for the audio signal recording / playback control unit 12. Sound is set to Rch and transmitted. In the audio signal recording / reproducing control unit 12, when recording the audio signal, the audio signal from the television broadcast receiving unit 11 is recorded on the video tape 13 and sent to the automatic audio switching control unit 16 and is reproduced. The reproduction signal from the video tape 13 is sent as an audio signal to the automatic audio switching control unit 16.

When recording a bilingual broadcast, the main audio is recorded in the Lch recording portion of the audio signal of the video tape 13 and the sub audio is recorded in the Rch recording portion. When receiving a bilingual broadcast or playing a tape recorded with a bilingual broadcast, the audio signal recording / playback control unit 12
From the audio signal output from, the Lch becomes the main audio signal and the Rch becomes the sub audio signal. The broadcast mode control unit 18 sends the identification information from the reproduction control signal pattern identification unit 19 when reproducing in the audio signal recording / reproducing mode, and from the TV broadcast receiving unit 11 when receiving the TV broadcast. The broadcast mode information of is transmitted.
When receiving a bilingual broadcast, the output from the broadcast mode control unit 18 becomes the bilingual broadcast mode, and similarly,
When the video tape recorded in the bilingual broadcasting mode is being reproduced, the output from the broadcasting mode control unit 18 is in the bilingual broadcasting mode. When the audio signal is recorded on the video tape 13, the control signal recording control unit 20
When the broadcast mode is changed by the broadcast mode information from the broadcast mode controller 18, the control signal of the specific pattern of 0 or 1 indicating that the broadcast mode is changed is recorded on the video tape 13.

Since there are three types of broadcasting modes, stereo broadcasting, bilingual broadcasting and monaural broadcasting, there are 6 specific patterns such as stereo broadcasting to bilingual broadcasting and bilingual broadcasting to stereo broadcasting. is there. By doing so, it becomes possible to determine the broadcast mode of the audio signal during reproduction of the video tape 13 by identifying the 0 or 1 pattern of the control signal. This identification is performed by the reproduction control signal pattern identification section 19, which is 0 or 1 of the control signal when reproduced.
Of the recorded audio, the broadcast mode of the recorded audio is discriminated, and the broadcast mode control section 18 sends the broadcast mode information as broadcast mode information when the video tape 13 is being reproduced. The automatic audio switching control unit 16 performs an audio selection operation on the audio signal from the audio signal recording / reproducing control unit 12 by the audio switching operation control from the audio switching operation unit 15, and further, the audio from the broadcast mode control unit 18 Basically, it switches to the main audio when it is a bilingual broadcast according to the mode information, and automatically returns to the original state when the broadcast mode other than bilingual is entered, and sends it to the external output control unit 17. To do.

Since the broadcast mode information for the audio signal recorded on the video tape 13 can be discriminated even when the video tape 13 is being reproduced, not only when the television broadcast is being received, but also at any time. It is possible to perform automatic control of audio switching depending on the audio signal broadcast mode. It is also possible to listen to the sub-audio by operating the audio switching operation unit 15 while listening to the bi-lingual broadcast mode. When the bi-lingual broadcast mode is subsequently selected, the sub-audio is selected. By providing a memorizing function, it is also possible to set so that the sub-audio will be automatically selected when the bilingual broadcasting mode is entered thereafter.

The characteristics of the recording / reproducing control unit for audio multiplex broadcasting according to this embodiment and the characteristics of the recording / reproducing control unit for conventional audio multiplex broadcasting are shown in comparison with FIG. In FIG. 2, 21 is a bilingual or non-bilingual broadcasting mode, 22 is an Lch audio signal output from the Lch section, and 23 is an Rch audio signal output from the Rch section.

As shown in FIG. 2A, the broadcast mode 21
When Lch is in a broadcast mode other than Bilingual,
The audio signal 22 is the Lch audio signal, and the Rch audio signal 2
Reference numeral 3 is Rch audio. From this state, when the broadcast mode 21 becomes the bilingual broadcast mode with time t, Lch
The audio signal 22 automatically switches from the Lch audio to the main audio, and the Rch audio signal 23 also automatically switches from the Rch audio to the main audio. Also, with time t, the broadcast mode 21
When is switched from the bilingual broadcasting mode to a broadcasting mode other than bilingual, the Lch audio signal 22 is automatically switched from the main audio to the Lch audio, and the Rch audio signal 23 is also switched from the main audio to the Rch audio. It should be noted that this operation is performed not only when receiving a television broadcast but also when reproducing a video tape recorded according to this embodiment.

In the conventional example, as shown in FIG. 2B, when the broadcasting mode 24 is a broadcasting mode other than the bilingual broadcasting, the Lch audio signal 25 is Lch audio and R
The ch audio signal 26 is Rch audio. When the broadcast mode 24 becomes the bilingual broadcast mode with time t from this state, the main sound can be heard from the Lch and the sub sound can be heard from the Rch at the same time. Therefore, this state is avoided and only the main sound is heard. Requires an operation for switching the voice as shown in FIG. In addition, broadcast mode 2
4 has completed the bilingual broadcasting mode, and when time t changes to a broadcasting mode other than the bilingual broadcasting mode, the voice switching must be operated again.

As is apparent from FIG. 2, the recording / reproducing control unit for audio multiplex broadcasting according to this embodiment has an excellent effect in that the operation of audio switching is unnecessary.

As described above, according to this embodiment, when the broadcast mode of the audio signal being received during recording is changed, the broadcast mode is changed by the combination of 0 or 1 of the control signal based on the VHS standard. A control signal recording control section for recording a specific pattern indicating
A playback control signal pattern identification unit that identifies 0 or 1 of the playback control signal when playing back, identifies the above-mentioned specific pattern and recognizes the audio mode of the portion being played back, and the audio of the broadcast reception signal and the playback signal. By providing an audio switching control unit that automatically switches audio according to the mode, the main audio is selected when the bilingual broadcasting mode is entered, and the original state is restored when the broadcasting mode other than the bilingual broadcasting mode is selected. Since the returning operation is automatically performed, it is possible to eliminate the need for a voice switching operation.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.

In FIG. 4, reference numeral 51 is a television broadcast receiving section, 52 is an audio signal recording / reproducing control section, 53 is a video tape, 54 is a display section, 55 is an audio switching operation section, and 56 is automatic audio switching. A control unit, 57 is an external output control unit, 58 is a broadcast mode control unit, 59 is a reproduction control signal pattern identifying unit, 60 is a control signal recording control unit, and the above is the same as the configuration of FIG. is there. Reference numeral 62 denotes a mechanism control unit which controls the VTR according to the identification signal from the reproduction control signal pattern identification unit 59.
Play, fast forward, and rewind. The difference in the configuration of FIG.
From the broadcast mode control unit 58 to the mechanism control unit 61.

The operation of the recording / reproducing control unit of the audio multiplex broadcasting configured as described above will be described with reference to FIG. First, the operation of recording the television broadcast signal on the video tape 53 is the same as in the first embodiment. In the actual broadcasting, bilingual broadcasting, stereo broadcasting, and monaural broadcasting are mixed, and for example, even a program in bilingual broadcasting may be partially stereo broadcasting. When the video tape 53 is reproduced, the reproduced audio signal is sent to the automatic audio switching controller 56 through the audio signal recording / reproducing controller 52. On the other hand, the control signal is input to the reproduction control signal pattern identification unit 19, and the identification signal indicating which broadcast mode has been changed is the broadcast mode control unit 58.
Is sent to the mechanism control unit 61. For example, the mechanism control unit 61 sends a fast-forward playback signal when the identification signal changes from the bilingual broadcast to the stereo broadcast, and when the identification signal returns to the bilingual broadcast, cancels the fast-forward command and returns to the playback. To do.

As described above, when there is a partial stereo or monaural broadcast in the middle of a bilingual broadcast, the stereo or monaural broadcast in the middle is fast-forwarded so that only the bilingual broadcast is played normally. In this case, the operation becomes complicated, but according to the present embodiment, a broadcast receiving device having a function of identifying a broadcast mode of an audio signal such as a stereo broadcast or a bilingual broadcast corresponding to the audio multiplex broadcast by the receiving device of the television broadcast. Section and when the broadcast mode of the audio signal being received at the time of recording changes, the combination of 0 or 1 of the control signal based on the VHS standard indicates a specific broadcast mode before and after the change. The control signal recording control section for setting and recording the pattern and the 0 or 1 of the reproduction control signal at the time of reproduction are discriminated to identify the specific pattern described above. This operation is automatically performed by providing a playback control signal pattern identification section that recognizes the audio mode of the portion being played back and a mechanism control circuit that automatically performs fast forward playback or rewind playback according to the audio mode of the playback signal. Since it can be performed at any time, the operation becomes easy.

[0025]

As described above, the present invention provides a broadcast receiving unit having a function of identifying a broadcast mode of an audio signal such as a stereo broadcast or a bilingual broadcast, which is compatible with audio multiplex broadcasting in a television broadcast receiving device. , A specific pattern indicating that the broadcast mode of the audio signal being received at the time of recording is changed by the combination of 0 or 1 of the control signal based on the VHS standard to show the broadcast mode before the change and the broadcast mode after the change A control signal recording control unit for setting and recording
A playback control signal pattern identification unit that identifies 0 or 1 of the playback control signal when playing back, identifies the above-mentioned specific pattern and recognizes the audio mode of the portion being played back, and the audio of the broadcast reception signal and the playback signal. By providing an audio switching control unit that automatically switches audio according to the mode, the main audio is selected when the bilingual broadcasting mode is entered, and the original state is restored when the broadcasting mode other than the bilingual broadcasting mode is selected. Since the returning operation is automatically performed, it is possible to realize an excellent automatic audio switching control function in audio multiplex broadcast recording / reproduction, which makes it unnecessary to perform an audio switching operation.

[Brief description of drawings]

FIG. 1 is a block diagram of a recording / playback control unit for audio multiplex broadcasting according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing an operation of a recording / playback control unit for audio multiplex broadcasting according to the present embodiment and an operation of a conventional recording / playback control unit for audio multiplex broadcasting.

FIG. 3 is a diagram showing a state of an audio signal when recording and reproducing a bilingual broadcast in the embodiment.

FIG. 4 is a block diagram of a recording / playback control unit for audio multiplex broadcasting in a second embodiment of the present invention.

FIG. 5 is a block diagram of a conventional recording / reproduction control unit for audio multiplex broadcasting.

[Explanation of symbols]

 11 TV Broadcast Receiving Section 12 Recording / Playback Control Section 13 Video Tape 14 Display Section 15 Audio Switching Operation Section 16 Automatic Audio Switching Control Section 17 External Output Control Section 18 Broadcast Mode Control Section 19 Playback Control Signal Pattern Identification Section 20 Control Signal Recording Control Section 61 Mechanism control unit

Claims (2)

[Claims] 1. A broadcast receiving unit having a function of identifying a broadcast mode of an audio signal such as a stereo broadcast or a bilingual broadcast corresponding to a multiplex audio broadcast in a television broadcast receiving device, and a receiver for receiving when recording. Control signal recording for setting and recording a specific pattern indicating the broadcast mode before the change and the broadcast mode after the change by the combination of 0 or 1 of the control signal based on the VHS standard, which indicates that the broadcast mode of the audio signal is changed. A control section, a reproduction control signal pattern identification section for identifying 0 or 1 of a reproduction control signal when reproducing, recognizing the audio mode of the section being reproduced by identifying the specific pattern described above, a broadcast reception signal, A magnetic recording / reproducing apparatus comprising a voice switching control unit for automatically switching a voice according to a voice mode of a reproduction signal. 2. A broadcast receiving unit having a function of identifying a broadcast mode of a voice signal such as a stereo broadcast or a bilingual broadcast corresponding to a voice multiplex broadcast in a television broadcast receiving device, and a broadcast receiving unit for receiving when recording. 0 or 1 of the control signal based on the VHS standard when the broadcast mode of the audio signal is changed.
The control signal recording control unit that sets and records a specific pattern indicating the broadcast mode before the change and the broadcast mode after the change, and 0 or 1 of the reproduction control signal when the reproduction is performed, and Features a playback control signal pattern identification section that recognizes the audio mode of the portion that is playing by identifying the pattern, and a mechanism control section that automatically performs fast-forward playback or rewind playback according to the audio mode of the playback signal. And a magnetic recording / reproducing apparatus.