JPH04214250A - Controller - Google Patents

Abstract

PURPOSE:To easily and automatically cut specified information such as the part of commercial even when a program source equipment and a recording equipment are separately constituted. CONSTITUTION:A BS tuner 7 and a VTR 8 which are separate are connected through a both-way bus 9, and a needless signal such as a commercial signal in an AV signal received by the BS tuner is cut based on the status of the bus 9 so as to perform dubbing on the VTR 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device that automatically cuts commercials and records them on a recording device.

0002

2. Description of the Related Art Conventionally, a multiplexed signal is transmitted as a method of cutting out commercials inserted in the middle when recording a video signal of a movie broadcast on a recording device such as a VTR to obtain continuous movie images. There is a known system that performs cutting by determining whether the broadcast is a two-audio multiplex broadcast (bilingual broadcast) or a stereo broadcast. This commercial cutting method takes advantage of the fact that bilingual broadcasts are often not broadcast only during commercials.

A conventional control device as described above for a BS tuner built in a VTR will be explained with reference to FIGS. 9 and 10. FIG. 9 shows the frequency spectrum of a conventionally broadcast television audio multiplexed signal, in which the frequency band of the main channel signal 20 is from 0 to 15 kHz, and the maximum frequency deviation of the main carrier wave is ±25 kHz. The frequency band of the sub-channel signal 21 (multiple audio signal) is 16kHz
z to 47kHz, the frequency of the audio signal carrier is 2fH, which is twice the horizontal synchronization frequency fH (15.75kHz).
(31.5 kHz), the modulation method is frequency modulation, and the maximum frequency deviation of the main carrier wave by the sub-channel signal is ±15 kHz in the case of two-audio multiplex broadcasting, and ±20 kHz in the case of stereo audio multiplex broadcasting. The modulation method in stereo audio multiplex broadcasting is a sum-difference method, and when the modulation degree is modulated with the left or right signal, the modulation degree of the main channel signal 20 and the modulation degree of the audio subcarrier match, and the maximum value is 50%. The polarity of the modulation is such that when the left signal is modulated, the polarity of the frequency shift of the main carrier by the main channel signal matches the polarity of the frequency shift of the audio subcarrier. The control channel signal 22 (multiple control signal) is the multiplexed signal being sent.
It is transmitted to determine whether it is an audio multiplex signal or a stereo audio multiplex signal, and the frequency of the control signal subcarrier is 3fH (55.125kHz), which is three times the horizontal synchronization signal frequency fH.
z) The modulation method is amplitude modulation and the modulation depth is 50 to 70%.
The transmission time is 922.5Hz sine wave (control signal) for two-audio multiplex broadcasting, and 982.5Hz for stereo audio multiplex broadcasting, and is transmitted continuously during multiplex broadcasting.
A control channel signal 22 amplitude-modulated with a sine wave (control signal) is multiplexed with the audio.

[0004] If the control signal in the case of the above-mentioned two-audio multiplex broadcast is detected, commercials will be shown only during the period when this control signal is not detected or during the period when the control signal is detected in the case of stereo audio multiplex broadcast. It can be determined that FIG. 10 shows a conventional control device for detecting such control signals and removing commercial signal components using a VTR 1 with a built-in BS tuner.

In FIG. 10, the above-mentioned control signal received by the antenna 2 connected to the input of the tuner section of the VTR 1 with a built-in BS tuner is detected by the receiving section 3, and is sent to the microcomputer (
(hereinafter referred to as CPU) 4. When the CPU 4 determines that the control signal is, for example, a control signal for stereo multiplex broadcasting, the CPU 4 sends a signal to drive the drive control section 5, and the drive control section 5 puts the VTR deck section 6 into a recording pause state. Of course, the current status of the VTR deck section 6 (for example, during recording) is constantly monitored by the CPU 4. Furthermore, if a control signal for two-audio multiplex broadcasting (hereinafter referred to as bilingual broadcasting) is detected, control is performed to change the VTR deck section 6 to a recording state.

[0006]

[Problems to be Solved by the Invention] According to the conventional configuration as described above, program source equipment such as a BS tuner and VT
It is relatively easy to incorporate such a control device into a device that integrates a recording device such as R, but in a device where the BS tuner and VTR are configured separately, it is possible to incorporate the control device etc. into the BS tuner by using an adapter. There was a problem that commercial cuts could not be made unless it was incorporated into the VTR.

The present invention is intended to solve the above-mentioned problems, and its first purpose is to separately configure program source equipment such as a BS tuner and V
To provide a control device that can easily cut commercials even in a recording device such as a TR. A second object of the present invention is to provide a control device that can easily cut commercials even if the recording apparatus does not have a commercial cutting function.

[0008]

[Means for Solving the Problems] The present invention has an example shown in FIG.
As shown in FIG. 9, a bidirectional bus 9, a program source device 7 capable of outputting status to the bus 9, and receiving the output of the program source device 7 by status or command via the bus 9. A recording device 8 is provided, and signals such as commercials from the program source device 7 are automatically removed and recorded in the recording device 8 according to the status or command via the bus 9. Even if the device 8 is configured separately, a control device that can easily cut commercials, etc. can be obtained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the control device of the present invention will be described in detail below with reference to FIGS. 1 to 8. FIG. 1 is a system diagram of the control device when recording the program of the BS tuner 7 on a separately provided VTR 8. supplied to The BS tuner 7 has a device capable of receiving a TV audio multiplexed signal, and has a function of outputting, for example, a movie information signal to a VTR 8, which is a recording device, through an AV signal path and performing recording. Furthermore, VTR
8 has a commercial cut function such as a switch for cutting commercials. BS tuner 7 and V
The TRs 8 are connected to each other by a bidirectional bus 9.

The sequence in the configuration of FIG. 1 will be explained with reference to FIG. Figure 2 shows the sequence when the mode is set to cut commercials while the VTR 8 is recording an AV signal such as a movie from the BS tuner 7. When the user inquires via the bus 9 what the current audio broadcast system is, the BS tuner 7 side replies to the VTR 8 side that it is, for example, a bilingual broadcast. Next, from the VTR8 side,
A command is again given to the S tuner side to report any status changes in the tuner section. When the BS tuner 7 side detects that the status has changed from bilingual broadcasting to stereo broadcasting (commercial), it responds to that effect to the VTR 8 side. In response to this response, the VTR 8 is put into recording pause mode. When the BS tuner 7 side detects that the status has changed to bilingual broadcasting again, the VTR 8
A response is sent to the broadcaster to the effect that it is a bilingual broadcast. This causes the VTR 8 to release the recording pause state and restart recording.

In this way, questions and answers are exchanged between the BS tuner 7 and the VTR 8 via the bidirectional bus 9 of a common standard, and by putting the VTR 8 in the recording pause state when the status changes, the VTR 8 is inserted into a series of movie signals. This has the advantage that it is very easy to automatically remove only the commercial signals that have been sent.

The embodiment shown in FIG. 3 includes a BS tuner 7 and a VTR 8.
An AV selector 10 is interposed in between, and the commercial signal component in the AV signal is cut off by the AV selector 10.
8 is configured so that it is not supplied.

In the configuration shown in FIG. 3 as well, status changes are detected between the BS tuner 7 and the VTR 8 via the bidirectional bus 9, and when a stereo signal corresponding to a commercial signal is detected, the recording state of the VTR 8 is cut off by the AV selector 10. The commercial signal is sent to the VTR through the AV signal path.
8, commercial signals can be automatically removed easily.

FIG. 4 shows another embodiment of the control device of the present invention.
The R8 and the BS tuner 7 are connected via a bidirectional bus 9 of a common standard, and are also connected to the controller 11. Of course, the AV signal received by the BS tuner 7 is
Record with TR8.

An example of the configuration of the controller 11 shown in FIG. 4 is shown in FIG. In FIG. 5, the bus terminal T of the controller 11 is connected to the bus 9, the bus terminal T is connected to the status receiving section 16, and the status state of the status receiving section 16 is stored in the buffer 12. The status signal of the status receiving section 16 and the status signal stored in the buffer 12 are supplied to the CPU 4, and the current change state of the status signal is determined. The determined result is notified to the command generating section 13, which generates a command signal and outputs the command to the bus 9 via the bus terminal T.

An example of the operations shown in FIGS. 4 and 5 described above will be explained using the sequence shown in FIG. 6. In this example, since the VTR 8 does not have a commercial cut function, the controller 11
reads the status signal from the BS tuner 7 and
8.

A specific example will be explained below based on FIG. The controller 11 has a commercial cut function. First, the controller 11 asks whether the deck section of the VTR 8 is in the current state via the CPU 4 -> bus terminal T -> bus 9. The VTR 8 responds, for example, to the effect that recording is in progress. Next, the controller 11 sends a question to the BS tuner 7 via the bus 9 asking what the current audio broadcasting method is.
This is done through The BS tuner 7 sends a response to the controller 11 via the bus 9, for example, indicating that it is a bilingual broadcast. Furthermore, the controller 11 outputs a command to the VTR 8 to report if there is a change in the status of the deck section, and also outputs a command to the BS tuner 7 to respond if there is a change in the status in the tuner section. B
When there is a response from the S tuner 7 side to the controller 11 side indicating that the broadcast has changed to stereo broadcasting, the controller 11
Issue a command to R8 to enter recording pause, and VT
R8 is placed in a recording pause state and recording is interrupted. Next, when the controller 11 receives a response from the BS tuner 7 indicating that the broadcast has changed to bilingual broadcasting, the controller 11 outputs a command to the VTR 8 to start recording, so the VTR 8 restarts recording.

In this way, questions and answers are exchanged between the controller 11 and the BS tuner 7 or VTR 8 via the bidirectional bus 9 of the common standard, and the controller 11 detects a change in status and puts the VTR 8 into the recording pause state by a command. This not only makes it extremely easy to automatically remove only commercial signals inserted into a series of video signals, but also allows control to remove commercial signals even if the VTR8 does not have a commercial cut function. A device is obtained.

FIG. 7 is a system diagram showing still another embodiment of the control device of the present invention. In the case of FIG. 7, the controller 11 receives a status change signal from the BS tuner VTR 1 similar to the conventional configuration shown in FIG. It is something. In this case BS
Even if the VTR 1 with a built-in tuner does not have a commercial cut function, it is possible to remove commercials via the bus 9.

FIG. 8 shows still another embodiment of the control device of the present invention, in which the first VTR 14 has a function of recording bilingual broadcast status in recording mode, and the second VTR 14 has a function of recording bilingual broadcast status in recording mode.
The first and second VTRs 14 and 15 are connected to a bidirectional bus 9.
are connected to each other. Even in the above configuration, the first VTR 14 receives the bilingual broadcast status and
If you give the VTR 15 a status and make it perform dubbing, the second VTR 15 can be used with the commercial cut out.
Dubbing to TR15 can be performed.

Furthermore, if the first VTR 14 does not have a function to record bilingual broadcast status, the first VTR 14
puts the VTR deck in fast forward mode during commercials,
If the change in operation is transmitted to the second VTR 15 via the bus 9 and dubbing is performed in such a way as to interrupt the recording state of the second VTR 15, a version with commercials removed can be obtained.

In each of the above embodiments, a BS tuner or a VTR is used as the program source device, and a VTR is used as the recording device.
However, for example, if a CD is used as a program source device,
It can also be used when recording sound reproduced by a CD player onto a cassette of a cassette tape recorder of a recording device by skipping silent parts or predetermined musical tones using a player or the like.

[0023]

Effects of the Invention As described above, according to the control device of the present invention, it is possible to automatically cut signals such as commercials between separate program source devices and recording devices. However, you can get something that can be controlled by a controller via a bus.

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing one embodiment of a control device of the present invention.

FIG. 2 is an explanatory diagram showing the sequence of FIG. 1 of the control device of the present invention.

FIG. 3 is a system diagram showing a second embodiment of the control device of the present invention.

FIG. 4 is a system diagram showing a third embodiment of the control device of the present invention.

FIG. 5 is a system diagram showing a controller used in the control device of the present invention.

FIG. 6 is an explanatory diagram showing the sequence of FIG. 4 of the control device of the present invention.

FIG. 7 is a system diagram showing a fourth embodiment of the control device of the present invention.

FIG. 8 is a system diagram showing a fifth embodiment of the control device of the present invention.

FIG. 9 is an explanatory diagram of the frequency spectrum of a conventional television audio multiplex signal.

FIG. 10 is a system diagram showing a conventional control device.

[Explanation of symbols]

1 VTR with built-in BS tuner 2 Antenna 3 Receiving section 4 CPU 5 Drive control section 6 VTR deck section 7 BS tuner 8 VTR 9 Bidirectional bus 10 AV selector 11 Controller

Claims (1)

[Claims] [Claim 1] A bidirectional bus, a program source device capable of outputting status to the bus,
and a recording device that receives the output of the program source device according to the status or command via the bus, and outputs a commercial or the like from the program source device according to the status or command via the bus. A control device characterized in that the signal is automatically removed and recorded in the recording device.