JPH08279942A - Signal processor and extension adaptor used for the processor - Google Patents

Abstract

PURPOSE: To provide a signal processor capable of easily adding functions without changing its external size and using a connection cable or the like with an external equipment. CONSTITUTION: A cabinet 1 for a camcordes is provided with analog sound input terminals 11, 12 for two channels, a sound input terminal for a microphone, an analog sound output terminal 14 for one channel, and an analog video output terminal 15 for one channel. A box type structure extension slot 50 having an insertion port is formed on the upper part of the rear side end of the cabinet 1. An extension adaptor to be inserted into the slot 50 is fixed by the use of a screw hole 51. An extending connector 52 for connecting a connector terminal for the extension adaptor is arranged on the bottom of the slot 50. A system for inputting a sound by a radio wave is constituted by inserting a radio sound input adaptor having a radio wave receiving part into the slot 50. In addition, a sound I/O terminal is extended by inserting the extended sound I/O adaptor into the slot 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing device for recording or reproducing an audio signal or a video signal and an extension adapter used for the signal processing device. Specifically, by providing an expansion slot in which an expansion connector is arranged and inserting an expansion adapter into this expansion slot, it is possible to use cables for connecting external devices without changing the external dimensions. The present invention relates to a signal processing device capable of easily adding functions without having to do so and an extension adapter used for the signal processing device.

[0002]

12 and 13 show an example of a conventional camera-integrated video tape recorder (VTR). In the figure, inside the cabinet 1, a camera section and a VTR section are arranged. The camera unit is configured to include an image sensor, a camera processing circuit for processing an output signal of the image sensor to obtain a video signal, and the like. The VTR unit processes a video signal output from the camera unit to obtain a recording signal, records the recording signal on a magnetic tape of a tape cassette, and rotates for reproducing the signal from the magnetic tape. A recording / reproducing mechanism including a head device and the like, a reproducing processing circuit for processing a reproduced signal to obtain a reproduced video signal, and the like are configured.

The tape cassette is inserted into the cabinet 1 through the tape insertion port 2 and loaded in the VTR section.
A lens block (not shown) is attached to the lens connecting portion 3 on the front end side of the cabinet 1. An electronic viewfinder 4 and a microphone 5 are mounted on the front end side of the cabinet 1. The electronic viewfinder 4 is supplied with a video signal output from the camera unit at the time of image pickup to enable monitoring of a captured image, and is supplied with a reproduced video signal output from the reproduction processing circuit of the VTR unit at the time of reproduction. It is possible to monitor the reproduced image.

A battery (not shown) is fixed to the rear end of the cabinet 1 by a battery fixing terminal 6. In this case, the battery terminal is connected to the battery connector 7. A display panel 8 for displaying the level of the recorded audio signal is arranged on the side surface of the cabinet 1. The level of the recording audio signal is adjusted by operating the level adjustment knob 9 provided on the side surface of the cabinet 1.

The cabinet 1 is also provided with input / output terminals for audio signals and video signals. For example, two channels of analog audio input terminals 11 and 12, a microphone audio input terminal 13, one channel of analog audio output terminal 14, and one channel of analog video output terminal 15 are provided.

FIG. 14 shows the structure of the recording / reproducing system of the VTR section. In FIG. 14, FIG. 12 and FIG.
The parts corresponding to are indicated by the same reference numerals.

First, the recording system 20 will be described. The audio input terminals 11 and 12 are respectively the audio processing circuit 2 of the recording system 20.
It is connected to the input side of 1, 22. The voice input terminal 13 for the microphone is connected to the input side of the voice processing circuits 21 and 22. The voice processing circuit 21 includes a voice input terminal 11
Switch circuit for switching between the audio signal SA1 supplied to the audio input terminal 13 and the output audio signal SAm of the microphone 5 supplied to the audio input terminal 13, a variable gain amplifier for adjusting the level of the recording audio signal, an amplitude limiting circuit, and an A / D. It is configured to include a converter and the like. Switching of the switch circuit is performed, for example, by operating a microphone input selection key arranged on the side surface of the cabinet 1. The voice processing circuit 22 is also configured similarly to the voice processing circuit 21. In this case, the switch circuit switches between the audio signal SA2 supplied to the audio input terminal 12 and the output audio signal SAm of the microphone 5 supplied to the audio input terminal 13.

The output side of the audio processing circuit 21 is connected to the input side of the recording processing circuit 23 for audio channel 1, and
It is connected to the fixed terminal on the side a of the changeover switch 27. The fixed terminal on the b side of the changeover switch 27 is grounded, and its movable terminal is connected to the input side of the recording processing circuit 25 for the audio channel 3. The output side of the audio processing circuit 22 is connected to the input side of the recording processing circuit 24 for the audio channel 2 and also to the fixed terminal on the a side of the changeover switch 28. The fixed terminal on the b side of the changeover switch 28 is grounded, and its movable terminal is the recording processing circuit 2 for the audio channel 4.
6 is connected to the input side.

Each of the recording processing circuits 23 to 26 comprises a compression coding circuit, a shuffling circuit, an error correction code addition circuit, a channel coding circuit and the like.
Further, the changeover switches 27 and 28 are set, for example, by software, and when recording an audio signal in the audio channel 3 area and the audio channel 4 area, which respectively constitute the tape recording area, they are switched to the a side. The setting of the changeover of the changeover switches 27 and 28 is performed using a setting operation key provided on the side surface of the cabinet 1, for example.

The recording processing circuit 29 is a recording processing circuit for video signals. The recording processing circuit 29 includes a compression encoding circuit, a shuffling circuit, an error correction code adding circuit,
It is configured by including a channel coding circuit and the like. A digital video signal SVcm output from the camera unit is supplied to the recording processing circuit 29. This video signal SV
cm is, for example, a luminance signal Y as a component video signal, a red color difference signal Cr, and a blue color difference signal Cb are Cb, Y, C
r, Y, Cb, Y, Cr, Y, Cb ...

In the above configuration, the voice processing circuit 21,
When the audio signals SA1 and SA2 supplied to the audio input terminals 11 and 12 are selected by the switch circuit of 22, the recording processing circuits 23 and 24 corresponding to the audio signals SA1 and SA2.
The recorded audio signals output from the audio channel 1 area and audio channel 2 respectively constitute the recording area on the tape.
Recorded in the area. Then, the changeover switches 27 and 28 are set to a so that the audio signals are recorded in the audio channel 3 area and the audio channel 4 area that form the recording area on the tape.
When the switch is set to the side, the audio signal SA is also applied to the audio channel 3 area and the audio channel 4 area, respectively.
Recording audio signals output from the recording processing circuits 25 and 26 corresponding to 1 and SA2 are recorded.

When the output audio signal SAm of the microphone 5 is selected by the switch circuits of the audio processing circuits 21 and 22, the recording processing circuit 2 corresponds to the audio signal SAm.
The recording audio signals output from 3 and 24 are recorded in the audio channel 1 area and the audio channel 2 area, respectively.
And the audio channel 3 which constitutes the recording area on the tape
When the changeover switches 27 and 28 are set to the a side so as to record the audio signal in the area and the audio channel 4, the audio channel 3 area and the audio channel 4
Recording audio signals output from the recording processing circuits 25 and 26 corresponding to the audio signal SAm are also recorded in the areas.

In addition, a recording video signal output from the recording processing circuit 29 corresponding to the video signal SVcm from the camera section is recorded in the video area forming the recording area on the tape.

Next, the reproducing system 30 will be described. The reproduction processing circuits 31 to 34 are for processing reproduction signals from the audio channel 1 area to the audio channel 4 area, which respectively constitute the recording area on the tape. Reproduction processing circuit 3
1 to 34 are each configured to include a demodulation circuit that demodulates a channel-coded reproduction signal, a deshuffling circuit, an error correction circuit, a compression code decoding circuit, and the like. The output sides of the reproduction processing circuits 31 and 32 are connected to the fixed terminals on the side a and the side b of the changeover switch 35, respectively. The output side of the reproduction processing circuits 33 and 34 is the changeover switch 3 respectively.
6 is connected to the fixed terminals on the a side and the b side.

The movable terminals of the changeover switches 35 and 36 are connected to the input sides of the audio processing circuits 37 and 38, respectively. The voice processing circuits 37 and 38 are each configured to have a D / A converter, a low pass filter, and the like. The output sides of the voice processing circuits 37 and 38 are a of the changeover switch 39, respectively.
Side and b side fixed terminals. The movable terminal of the changeover switch 39 is connected to the audio output terminal 14. Switching of the changeover switches 35, 36, 39 is set, for example, by software so that the audio signal corresponding to the reproduction signal of the audio channel 1 area to the audio channel 4 area of the tape recording area can be selectively obtained at the output terminal 14. To be
This switching setting is performed using, for example, a setting operation key arranged on the side surface of the cabinet 1.

The reproduction processing circuit 40 is for processing the reproduction signal from the video area which constitutes the recording area on the tape. The reproduction processing circuit 40 includes a demodulation circuit for demodulating a channel-coded reproduction signal, a deshuffling circuit, an error correction circuit, a compression code decoding circuit, a luminance signal Y as a component video signal, and a color difference signal Cr ,.
Encoder that obtains composite video signal from Cb, D /
It has an A converter and the like. This reproduction processing circuit 40
The output side of is connected to the video output terminal 15.

In the above structure, when the change-over switch 35 is connected to the side a and the change-over switch 39 is connected to the side a, the audio channel 1 forming the recording area on the tape.
An analog audio signal output from the audio processing circuit 37 corresponding to the reproduced signal from the area is obtained at the audio output terminal 14. Further, when the changeover switch 35 is connected to the b side and the changeover switch 39 is connected to the a side, the sound processing circuit 37 outputs in response to the reproduction signal from the sound channel 2 area forming the recording area on the tape. An analog audio signal to be output is obtained at the audio output terminal 14.

When the changeover switch 36 is connected to the side a and the changeover switch 39 is connected to the side b, the audio processing circuit corresponding to the reproduction signal from the audio channel 3 area forming the recording area on the tape. An analog audio signal output from 38 is obtained at the audio output terminal 14. When the change-over switch 36 is connected to the b side and the change-over switch 39 is connected to the b side, it is output from the audio processing circuit 38 in response to the reproduction signal from the audio channel 4 area forming the tape recording area. An analog audio signal to be output is obtained at the audio output terminal 14.

Further, the reproduction processing circuit 40 outputs an analog video signal corresponding to the reproduction signal from the video area forming the recording area on the tape, and the analog video signal is obtained at the video output terminal 15.

[0020]

In the above-mentioned conventional camera-integrated VTR, the audio input terminals 11 to 13, the audio output terminal 14, and the video output terminal 15 are provided as fixed terminals in the cabinet 1, and the input / output terminals are provided. It was virtually impossible to add, reduce, or change the signal content because a mechanical change was necessary. Therefore, for example, in order to make maximum use of a recording system such as audio 4 channels, it is necessary to equip the audio input / output terminals and the video input / output terminals in the greatest common factor, which increases the weight of the device and reduces the power consumption, There was no choice but to increase parts costs and manufacturing costs. However, in the case of a camera-integrated VTR that aims for compactness and lightness, the cabinet 1
The terminal layout area on the top was limited, and it was possible to equip only the minimum required number of terminals.

Further, FIG. 15 shows a system for capturing audio by utilizing wireless in the camera-integrated VTR as described above. In the figure, a wireless receiver 43 having an antenna 42 is attached to the camera-integrated VTR 100. The wireless receiver 43 is electrically connected to the camera-integrated VTR 100 with the audio cable 44 and the power cable 45.

The radio signal transmitted from the antenna 48 of the radio transmitter 47 carried by the subject 46 is captured by the antenna 42 and supplied to the radio receiver 43, and the audio signal output from the radio receiver 43 is an audio cable. Input terminal 13 for a microphone, for example, via 44 (see FIG. 12)
And is recorded in the recording area on the tape.

The advantage of the camera-integrated VTR 100 is that it is an all-in-one portability, that is, there are few cables for connecting to external devices, but in the system shown in FIG. 15, the cable for connecting to the wireless receiver 43 is used. Type of connection is required, and the advantage is lost.

Therefore, according to the present invention, the external dimensions are not changed and a cable for connecting to an external device is not used.
It is intended to provide a signal processing device capable of easily adding a function and an extension adapter used for the signal processing device.

[0025]

A signal processing apparatus according to the present invention comprises an expansion slot in which an expansion connector having terminals for recording signal input or reproduction signal output is arranged.

Further, the expansion adapter according to the present invention is an expansion adapter which is used by being inserted into an expansion slot of a signal processing device provided with an expansion connector having terminals for recording signal input or reproduction signal output. It has a connector terminal connected to the above-mentioned terminal for recording signal input or reproduction signal output.

[0027]

Operation: An extension adapter is inserted in the extension slot of the signal processing device. In this case, the terminal for recording signal input or playback signal output of the expansion connector of the expansion slot,
The connector terminal of the extension adapter is connected. As a result, the signal output from the expansion adapter is supplied to the signal processing device for recording processing, or the signal reproduced by the signal processing device is supplied to the expansion adapter.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. This example is an example applied to a camera-integrated VTR. FIG. 1 shows a camera-integrated VTR of this example. However, the electronic viewfinder 4 and the microphone 5 in FIGS. 12 and 13 are shown in a removed state. In FIG. 1, parts corresponding to those in FIGS. 12 and 13 are designated by the same reference numerals.

In the camera-integrated VTR of this example, a camera section and a VTR section are provided inside the cabinet 1 as in the examples of FIGS. 12 and 13. The camera unit is configured to include an image sensor, a camera processing circuit for processing an output signal of the image sensor to obtain a video signal, and the like. VT
The R section records a recording processing circuit for processing a video signal output from the camera section to obtain a recording signal, records the recording signal on a magnetic tape of a tape cassette, and rotates the signal for reproducing the signal from the magnetic tape. A recording / reproducing mechanism including a head device and the like, a reproducing processing circuit for processing a reproduced signal to obtain a reproduced video signal, and the like are configured.

The cabinet 1 is provided with input / output terminals for audio signals and video signals. That is, two channels of analog audio input terminals 11 and 12, a microphone audio input terminal 13 (not shown in FIG. 1), one channel of analog audio output terminal 14, and one channel of analog video. An output terminal 15 (not shown in FIG. 1) is provided.

Further, the camera-integrated VTR of this example is provided with a box-shaped expansion slot 50 having an insertion opening at the upper part of the rear end of the cabinet 1. This expansion slot 50
The expansion adapter, which will be described later, inserted into the camera is fixed to the camera-integrated VTR using the screw hole 51. An expansion connector 52 is arranged at the bottom of the expansion slot 50.
The expansion connector 52 is provided with input / output terminals for audio signals and video signals. That is, as will be described later, audio input terminals 61 and 62 for two channels, video input terminal 63 for one channel, audio output terminal 71 for one channel, video output terminal 72 for one channel, and DC voltage + B are supplied. A power output terminal 64 is provided.

FIG. 2 shows the VT of the camera-integrated VTR of this example.
The structure of the recording and reproducing system of the R portion is shown. In FIG. 2, parts corresponding to those in FIG. 1 are designated by the same reference numerals.

First, the recording system 60 will be described. The audio input terminals 11 and 12 are respectively the audio processing circuit 2 of the recording system 60.
It is connected to the input side of 1, 22. The voice input terminal 13 for the microphone is connected to the input side of the voice processing circuits 21 and 22. The voice processing circuit 21 includes a voice input terminal 11
Switch circuit for switching between the audio signal SA1 supplied to the audio input terminal 13 and the output audio signal SAm of the microphone 5 supplied to the audio input terminal 13, a variable gain amplifier for adjusting the level of the recording audio signal, an amplitude limiting circuit, and an A / D. It is configured to include a converter and the like. Switching of the switch circuit is performed, for example, by operating a microphone input selection key arranged on the side surface of the cabinet 1. The voice processing circuit 22 is also configured similarly to the voice processing circuit 21. In this case, the switch circuit switches between the audio signal SA2 supplied to the audio input terminal 12 and the output audio signal SAm of the microphone 5 supplied to the audio input terminal 13.

The output side of the audio processing circuit 21 is connected to the input side of the recording processing circuit 23 for audio channel 1, and
It is connected to the fixed terminal on the side a of the changeover switch 65. The fixed terminal on the b side of the changeover switch 65 is the extension connector 5
2 is connected to an audio input terminal 61 provided at No. 2, and its movable terminal is connected to the input side of the recording processing circuit 25 for the audio channel 3. The output side of the audio processing circuit 22 is connected to the input side of the recording processing circuit 24 for the audio channel 2 and also to the fixed terminal on the a side of the changeover switch 66. The fixed terminal on the b side of the changeover switch 66 is connected to the audio input terminal 62 of the expansion connector 52, and its movable terminal is connected to the input side of the recording processing circuit 26 for the audio channel 4. The recording processing circuits 23 to 26 are each configured to have a compression encoding circuit, a shuffling circuit, an error correction code addition circuit, a channel coding circuit, and the like.

The video input terminal 63 of the expansion connector 52 is connected to the fixed terminal on the b side of the changeover switch 67,
A digital video signal SVcm output from the camera unit is supplied to the fixed terminal on the a side. This video signal SV
cm is a luminance signal Y as a component video signal, a red color difference signal Cr, and a blue color difference signal Cb are Cb, Y, Cr,
It is a signal serialized like Y, Cb, Y, Cr, Y, Cb .... The movable terminal of the changeover switch 67 is connected to the input side of the recording processing circuit 29. This recording processing circuit 2
Reference numeral 9 includes a compression encoding circuit, a shuffling circuit, an error correction code adding circuit, a channel coding circuit, and the like.

The changeover of the changeover switches 65, 66, 67 is controlled by the additional adapter detecting section 80. The expansion adapter detection unit 80 electrically detects, for example, whether or not the connector terminals of the expansion adapter, which will be described later, are connected to the audio input terminal 61, the audio input terminal 62, and the video input terminal 63 of the expansion connector 52. (Not shown). In this case, the changeover switches 65, 66, 67
Are connected to the a side when the connector terminals of the extension adapter are not connected to the audio input terminal 61, the audio input terminal 62, and the video input terminal 63, respectively, and are connected to the b side when one of them is connected.

In the above configuration, the voice processing circuit 21,
When the audio signals SA1 and SA2 supplied to the audio input terminals 11 and 12 are selected by the switch circuit of 22, the recording processing circuits 23 and 24 corresponding to the audio signals SA1 and SA2.
The recorded audio signals output from the audio channel 1 area and audio channel 2 respectively constitute the recording area on the tape.
Recorded in the area. In this case, when the connector terminals of the extension adapter are not connected to the audio input terminals 61 and 62 of the expansion connector 52, the changeover switch 65,
Since 66 is connected to the side a, the recording audio signals output from the recording processing circuits 25 and 26 corresponding to the audio signals SA1 and SA2 are recorded in the audio channel 3 area and the audio channel 4 area, respectively, which form the recording area on the tape. The signal is recorded.

When the output audio signal SAm of the microphone 5 is selected by the switch circuits of the audio processing circuits 21 and 22, the recording processing circuit 2 corresponds to the audio signal SAm.
The recording audio signals output from 3 and 24 are recorded in the audio channel 1 area and the audio channel 2 area, respectively.
In this case, the audio input terminal 6 of the expansion connector 52
When the connector terminals of the extension adapter are not connected to the terminals 1 and 62, the changeover switches 65 and 66 are connected to the side a, so that the audio channel 3 area and the audio channel 4 area respectively correspond to the audio signal SAm. Recording processing circuit 2
The recording audio signals output from 5, 26 are recorded.

When the connector terminals of the extension adapter are connected to the audio input terminals 61 and 62 of the expansion connector 52, the changeover switches 65 and 66 are connected to the b side, so that the audio channel 3 area, the audio channel Audio input terminals 61 and 62 from the extension adapter in the channel 4 area respectively
Corresponding to the audio signal supplied to the recording processing circuit 25, 2
The recording audio signal output from 6 is recorded.

When the connector terminal of the extension adapter is not connected to the video input terminal 63 of the expansion connector 52, the changeover switch 67 is connected to the side a, so that the video area forming the tape recording area is displayed. The recording video signal output from the recording processing circuit 29 is recorded in correspondence with the video signal SVcm output from the camera unit. on the other hand,
When the connector terminal of the expansion adapter is connected to the video input terminal 63 of the expansion connector 52, the changeover switch 67 is connected to the side b, so that the video area is supplied from the expansion adapter to the video input terminal 63. The recording video signal output from the recording processing circuit 29 corresponding to the video signal is recorded.

Next, the reproducing system 70 will be described. The reproduction processing circuits 31 to 34 are for processing reproduction signals from the audio channel 1 area to the audio channel 4 area, which respectively constitute the recording area on the tape. Reproduction processing circuit 3
1 to 34 are each configured to include a demodulation circuit that demodulates a channel-coded reproduction signal, a deshuffling circuit, an error correction circuit, a compression code decoding circuit, and the like. The output sides of the reproduction processing circuits 31 and 32 are connected to the fixed terminals on the side a and the side b of the changeover switch 35, respectively. The output side of the reproduction processing circuits 33 and 34 is the changeover switch 3 respectively.
6 is connected to the fixed terminals on the a side and the b side.

The movable terminals of the changeover switches 35 and 36 are connected to the input sides of the audio processing circuits 37 and 38, respectively. The voice processing circuits 37 and 38 are each configured to have a D / A converter, a low pass filter, and the like. The output sides of the voice processing circuits 37 and 38 are a of the changeover switch 39, respectively.
Side and b side fixed terminals. The movable terminal of the changeover switch 39 is connected to the audio output terminal 14. The output sides of the audio processing circuits 37 and 38 are connected to the fixed terminals of the changeover switch 73 on the a side and the b side, respectively. The movable terminal of the changeover switch 73 is the extension connector 52.
Of audio output terminal 71.

Switching of the changeover switches 35, 36, 39, 73 is set, for example, by software, and the audio signal corresponding to the reproduced signal of the audio channel 1 area to the audio channel 4 area of the tape recording area is selectively output terminal. 14,7
1 is obtained. This switching setting is performed using, for example, a setting operation key arranged on the side surface of the cabinet 1.

The reproduction processing circuit 40 is for processing the reproduction signal from the video area forming the recording area on the tape. The reproduction processing circuit 40 includes a demodulation circuit for demodulating a channel-coded reproduction signal, a deshuffling circuit, an error correction circuit, a compression code decoding circuit, a luminance signal Y as a component video signal, and a color difference signal Cr ,.
Encoder that obtains composite video signal from Cb, D /
It has an A converter and the like. This reproduction processing circuit 40
The output side of is connected to the video output terminal 15 and is also connected to the video output terminal 72 of the expansion connector 52.

In the above configuration, when the changeover switch 35 is connected to the a side and the changeover switch 39 is connected to the a side, the audio channel 1 forming the tape recording area is formed.
An analog audio signal output from the audio processing circuit 37 corresponding to the reproduced signal from the area is obtained at the audio output terminal 14. Further, when the changeover switch 35 is connected to the b side and the changeover switch 39 is connected to the a side, the sound processing circuit 37 outputs in response to the reproduction signal from the sound channel 2 area forming the recording area on the tape. An analog audio signal to be output is obtained at the audio output terminal 14.

When the change-over switch 36 is connected to the side a and the change-over switch 39 is connected to the side b, the audio processing circuit corresponding to the reproduction signal from the audio channel 3 area forming the recording area on the tape. An analog audio signal output from 38 is obtained at the audio output terminal 14. When the change-over switch 36 is connected to the b side and the change-over switch 39 is connected to the b side, it is output from the audio processing circuit 38 in response to the reproduction signal from the audio channel 4 area forming the tape recording area. An analog audio signal to be output is obtained at the audio output terminal 14.

When the changeover switch 35 is connected to the a side and the changeover switch 73 is connected to the a side, an analog signal output from the audio processing circuit 37 in response to a reproduction signal from the audio channel 1 area is output. A voice signal is obtained at the voice output terminal 71. When the changeover switch 35 is connected to the b side and the changeover switch 73 is connected to the a side,
An analog audio signal output from the audio processing circuit 37 corresponding to the reproduced signal from the audio channel 2 area is obtained at the audio output terminal 71.

When the change-over switch 36 is connected to the side a and the change-over switch 73 is connected to the side b, the analog signal output from the audio processing circuit 38 in response to the reproduced signal from the audio channel 3 area is output. A voice signal is obtained at the voice output terminal 71. When the changeover switch 36 is connected to the b side and the changeover switch 73 is connected to the b side,
An analog audio signal output from the audio processing circuit 38 corresponding to the reproduced signal from the audio channel 4 area is obtained at the audio output terminal 71.

Further, the reproduction processing circuit 40 outputs an analog video signal corresponding to the reproduction signal from the video area forming the recording area on the tape, and the analog video signal is obtained at the video output terminals 15 and 72. .

FIG. 3 shows an example in which a wireless voice input adapter (extension adapter) 110 having a wireless receiver is inserted in the expansion slot 50 of the camera-integrated VTR of this example. The adapter 110 inserted in the expansion slot 50 is fixed by screwing the screw 53 into the screw hole 51 described above.

In FIG. 4, the adapter 11 is installed in the expansion slot 50.
It shows a system configured by using the camera-integrated VTR 200 of this example in which 0 is inserted. The radio signal transmitted from the antenna 48 of the radio transmitter 47 carried by the subject 46 is captured by the antenna 111 of the adapter 110 and supplied to the radio reception unit, and the audio signal output from the radio reception unit is recorded and processed. It is recorded in the recording area on the tape.

In FIG. 5, the adapter 11 is installed in the expansion slot 50.
The structure of the recording / reproducing system of the VTR section of the camera-integrated VTR of this example in which 0 is inserted is shown. In the figure, the adapter 110 is configured to include an antenna 111, a wireless reception unit 112, and a voice processing circuit 113. The wireless reception unit 112 processes the wireless signal captured by the antenna 111 and obtains a voice signal. The audio signal output from the wireless reception unit 112 is supplied to the audio processing circuit 113. The audio processing circuit 113 is configured to include a variable gain amplifier for adjusting the level of an audio signal, an amplitude limiting circuit, an A / D converter, and the like.

The output side of the audio processing circuit 113 is connected to the audio output terminal 114 which constitutes a connector terminal. The adapter 110 has a power input terminal 115 as a connector terminal, and power is supplied to the wireless reception unit 112 and the audio processing circuit 113 via the power input terminal 115.
When the adapter 110 is inserted and fixed in the expansion slot 50, the audio output terminal 114 and the power input terminal 115 are
The extension connector 52 is connected to the audio input terminal 61 and the power output terminal 64, respectively.

In the above configuration, when the adapter 110 is inserted and fixed in the expansion slot 50, the audio output terminal 114 of the adapter 110 is connected to the audio input terminal 61 of the expansion connector 52, so that the changeover switch 65 is on the b side. The audio signal output from the audio processing circuit 113 of the adapter 110 is supplied to the recording processing circuit 25 via the audio output terminal 114, the audio input terminal 61 of the expansion connector 52, and the b side of the changeover switch 65. . Therefore, the recording audio signal output from the recording processing circuit 25 corresponding to the audio signal is recorded in the audio channel 3 area forming the recording area on the tape.

The adapter 11 is installed in the expansion slot 50 described above.
In the system of FIG. 4 configured using the camera-integrated VTR 200 of this example in which 0 is inserted, the audio cable 44 and the power cable 45 as in the system of FIG.
Becomes unnecessary. As a result, the all-in-one portability of the camera-integrated VTR can be maintained.

Next, FIG. 6 shows a camera-integrated VTR of this example.
In this example, an additional voice input / output adapter (additional adapter) 120 is inserted into the expansion slot 50. Expansion slot 50
The adapter 120 inserted in is fixed by screwing the screw 53 into the screw hole 51 described above. Adapter 120
Is an additional audio input terminal 121, 122 for 2 channels,
An additional audio output terminal 123 for one channel is provided.

In FIG. 7, the adapter 12 is installed in the expansion slot 50.
The structure of the recording / reproducing system of the VTR section of the camera-integrated VTR of this example in which 0 is inserted is shown. In the figure, the adapter 120 is configured to include audio processing circuits 124 and 125. The additional audio input terminals 121 and 122 are connected to the input sides of the audio processing circuits 124 and 125, respectively, and the output sides thereof are connected to the audio output terminals 126 and 127 that form connector terminals, respectively. The audio processing circuits 124 and 125 are each configured to have a variable gain amplifier for adjusting the level of an audio signal, an amplitude limiting circuit, an A / D converter, and the like.

Further, the additional audio output terminal 123 is connected to the audio input terminal 128 which constitutes a connector terminal. Further, the adapter 120 has a power input terminal 129 as a connector terminal, and power is supplied to the audio processing circuits 124 and 125 via the power input terminal 129.

When the adapter 120 is inserted and fixed in the expansion slot 50, the audio output terminals 126 and 127, the audio input terminal 128, and the power input terminal 129 are the audio input terminals 61 and 62 and the audio output terminal of the expansion connector 52, respectively. 71 and the power output terminal 64.

In the above configuration, when the adapter 120 is inserted and fixed in the expansion slot 50, the audio output terminals 126 and 127 of the adapter 120 are connected to the audio input terminals 61 and 62 of the expansion connector 52, and therefore the changeover switch. 65 and 66 are connected to the b side, and digital audio signals output from the audio processing circuits 124 and 125 of the adapter 120 are audio output terminals 126 and 127 and the expansion connector 5
2 audio input terminals 61 and 62, changeover switches 65 and 66
Is supplied to the recording processing circuits 25 and 26 via the b side.
Therefore, the additional audio input terminal 121 of the adapter 120,
Recording processing circuit 2 corresponding to the audio signal supplied to 122
The recording audio signals output from Nos. 5 and 26 are recorded in the audio channel 3 area and the audio channel 4 area, respectively, which form the recording area on the tape.

Further, the adapter 120 has the expansion slot 50.
The audio input terminal 1 of the adapter 120 when inserted and fixed in
Since 28 is connected to the audio output terminal 71 of the expansion connector 52, the reproduced audio signal obtained at the audio output terminal 71 of the expansion connector 52 is obtained at the additional audio output terminal 123 of the adapter 120.

As described above, by inserting the adapter 120 into the expansion slot 50 of the camera-integrated VTR of this embodiment,
Audio input terminals for 1 channel and audio output terminals for 1 channel have been added, for a total of 4 audio input channels and 2 audio output terminals.
Become a channel. Therefore, by inserting the adapter 120, it is possible to obtain an input / output terminal similar to a studio machine.

Next, FIG. 8 is a camera-integrated VTR of this example.
In this example, the composite video input adapter (expansion adapter) 130 is inserted into the expansion slot 50 of FIG. The adapter 130 inserted in the expansion slot 50 is fixed by screwing the screw 53 into the screw hole 51 described above. The adapter 130 includes a composite video input terminal 131.

FIG. 9 shows the adapter 13 installed in the expansion slot 50.
The structure of the recording / reproducing system of the VTR section of the camera-integrated VTR of this example in which 0 is inserted is shown. In the figure, the adapter 130 is configured to include a video processing circuit 132. The composite video input terminal 131 is connected to the input side of the video processing circuit 132, and the output side thereof is connected to the video output terminal 133 which constitutes a connector terminal. The video processing circuit 132 converts the composite video signal into the luminance signal Y.
And a carrier color signal C, a separation circuit for separating the carrier color signal C to obtain a red color difference signal Cr and a blue color difference signal Cb, and a luminance signal Y and A for converting the color difference signals Cr and Cb into digital signals. A D / D converter, a processing circuit for sequentially digitizing the digitized luminance signal Y and the color difference signals Cr, Cb to obtain an output video signal of the same format as the video signal SVcm from the camera section, and the like. To be done.

The adapter 130 has a power input terminal 134 as a connector terminal, and power is supplied to the video processing circuit 132 via the power input terminal 134. When the adapter 130 is inserted and fixed in the expansion slot 50, the video output terminal 133 and the power input terminal 134.
Are respectively connected to the video input terminal 63 and the power output terminal 64 of the expansion connector 52.

In the above configuration, when the adapter 130 is inserted and fixed in the expansion slot 50, the video output terminal 133 of the adapter 130 is connected to the video input terminal 63 of the expansion connector 52, so that the changeover switch 67 is on the b side. The digital video signal output from the video processing circuit 132 of the adapter 130 is connected to the video output terminal 133, the video input terminal 63 of the expansion connector 52, and the changeover switch 6.
7 is supplied to the recording processing circuit 29 through the b side. Therefore, the composite video input terminal 13 of the adapter 130
The recording video signal output from the recording processing circuit 29 corresponding to the composite video signal supplied to the No. 1 is recorded in the video area forming the recording area on the tape.

Next, FIG. 10 shows a camera-integrated VT of this example.
In this example, a component video input adapter (expansion adapter) 140 is inserted into the R expansion slot 50. The adapter 140 inserted in the expansion slot 50 is fixed by screwing the screw 53 into the screw hole 51 described above. The adapter 140 has a luminance input terminal 141 and a red color difference input terminal 14 for supplying a luminance signal Y, a red color difference signal Cr, and a blue color difference signal Cb, respectively, as component video signals.
2. A blue difference input terminal 143 is provided.

FIG. 11 shows the adapter 1 installed in the expansion slot 50.
The structure of the recording / reproducing system of the VTR section of the camera-integrated VTR of this example in which 40 is inserted is shown. In the figure, the adapter 140 is configured to include a video processing circuit 144.
Input terminals 141 to 141 are provided on the input side of the video processing circuit 144.
143 is connected, and its output side is connected to a video output terminal 145 which constitutes a connector terminal. The video processing circuit 144 is an A / D converter for converting the luminance signal Y as a component video signal, the red color difference signal Cr, and the blue color difference signal Cb into a digital signal, and the digitized luminance signal Y and the color difference signals Cr, Cb sequentially. It is configured by including a processing circuit for obtaining an output video signal of the same format as the above-described video signal SVcm from the camera unit.

The adapter 140 also has a power input terminal 146 as a connector terminal, and power is supplied to the video processing circuit 144 via the power input terminal 146. When the adapter 140 is inserted and fixed in the expansion slot 50, the video output terminal 145 and the power input terminal 146.
Are respectively connected to the video input terminal 63 and the power output terminal 64 of the expansion connector 52.

In the above structure, when the adapter 140 is inserted and fixed in the expansion slot 50, the video output terminal 145 of the adapter 140 is connected to the video input terminal 63 of the expansion connector 52. The digital video signal output from the video processing circuit 144 of the adapter 140 is connected to the video output terminal 145, the video input terminal 63 of the expansion connector 52, and the changeover switch 6.
7 is supplied to the recording processing circuit 29 through the b side. Therefore, the recording video signal output from the recording processing circuit 29 corresponding to the luminance signal Y, the red color difference signal Cr, and the blue color difference signal Cb as the component video signals supplied to the input terminals 141 to 143 of the adapter 140 is recorded on the tape. It is recorded in the video area that constitutes the recording area.

As described above, in this example, by inserting the extension adapters such as the wireless voice input adapter 110 and the extension voice input / output adapter 120 into the extension slot 50, the external dimensions are not changed and the connection with the external device is performed. Functions can be easily added without using a cable for use. In addition, since it is possible to easily add input / output terminals for audio signals and video signals, it is not necessary to equip the outer surface of the cabinet 1 with audio input / output terminals or video input / output terminals in the greatest common divisor, and the device can be made compact and lightweight. It is possible to reduce cost, reduce power consumption, and reduce component cost and manufacturing cost.

Since a new audio / video input / output circuit can be operated simply by inserting an additional adapter into the expansion slot 50, the workability of connecting these new audio / video input / output circuits can be greatly improved. . Further, since the expansion adapter is used by inserting it into the expansion slot 50, the expansion slot 50 can protect the exterior surface of the enclosure of the expansion adapter. Therefore, it is not necessary to make the exterior of the expansion adapter strong, and simplification, miniaturization, and weight reduction are possible.

Further, since power is supplied to the expansion adapter inserted in the expansion slot 50 through the power output terminal 64 of the expansion connector 52, it is necessary to arrange a power cable between the camera-integrated VTR and the expansion adapter. Without
Use of extension adapter becomes easy. Further, when the expansion adapter is inserted into the expansion slot 50, the expansion adapter detection unit 80 detects that the expansion adapter has been inserted,
Switching of the changeover switches 65 to 67 is automatically controlled according to the type of the extension adapter. Therefore, the setting work of the camera-integrated VTR when using the extension adapter can be simplified.

In the above embodiment, the recording system 60
The luminance signal Y and the color difference signals Cr and Cb that form the component video signal are supplied to the recording processing circuit 29 of FIG. 1 in the form of being serialized for recording processing. However, the composite video signal is supplied to the recording processing circuit 29 for processing. You can think of something to do. In that case, the composite video input adapter or the component video input adapter is the expansion connector 63.
Will be configured to supply a composite video signal.

Further, even if not mentioned above, if the structure of the expansion slot 50 is the same for a plurality of models, the extension adapter can be used for a plurality of models. Further, in the above-described embodiment, an example in which the expansion slot 50 is provided in the camera-integrated VTR has been described, but the present invention uses other recording / reproducing operations such as recording / reproducing audio signals or video signals using a disc-shaped recording medium. The same can be applied to the device.

The number and types of input / output terminals of the expansion connector 52 and the example of the extension adapter in the above-mentioned embodiment are only examples, and needless to say, the present invention is not limited to these.

[0077]

According to the signal processing device of the present invention,
It has an expansion slot in which an expansion connector having terminals for recording signal input or reproduction signal output is arranged,
Since an extension adapter can be inserted into this extension slot, it is possible to easily add functions without changing the external dimensions and without using a cable for connecting to an external device. In addition, it is possible to easily add input / output terminals for audio and video signals simply by inserting an extension adapter into the expansion slot, so it is necessary to equip the outer surface of the cabinet with audio input / output terminals and video input / output terminals in the greatest common divisor. Therefore, it is possible to reduce the size and weight of the device, reduce the power consumption, and reduce the component cost and the manufacturing cost. In addition, by detecting that an expansion adapter is inserted in the expansion slot and allowing the output signal of this expansion adapter to be automatically selected as a recording signal by the switch circuit, the setting work when using the expansion adapter is simplified. Can be converted.

Further, according to the extension adapter of the present invention, since it is used by being inserted into the extension slot of the signal processing apparatus, the extension slot can protect the exterior surface of the enclosure of the extension adapter, and the exterior of the extension adapter. It is not necessary to strengthen the structure, and simplification, downsizing and weight reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a camera-integrated VTR according to an embodiment.

FIG. 2 is a system diagram showing a configuration of a recording / reproducing system of a VTR section of a camera-integrated VTR according to an embodiment.

FIG. 3 is a perspective view showing an example in which a wireless voice input adapter is inserted.

FIG. 4 is a diagram showing an example in which a system for capturing audio by wireless is configured in the camera-integrated VTR of this example.

FIG. 5 is a system diagram showing a configuration of a recording / reproducing system of a VTR unit when a wireless voice input adapter is inserted.

FIG. 6 is a perspective view showing an example in which an additional voice input / output adapter is inserted.

FIG. 7 is a system diagram showing a configuration of a recording / reproducing system of a VTR unit when an additional audio input adapter is inserted.

FIG. 8 is a perspective view showing an example in which a composite video input adapter is inserted.

[Fig. 9] VTR when a composite video input adapter is inserted
It is a systematic diagram which shows the structure of the recording / reproducing system of a part.

FIG. 10 is a perspective view showing an example in which a component video input adapter is inserted.

FIG. 11: V when the component video input adapter is inserted
3 is a system diagram showing a configuration of a recording / reproducing system of a TR section. FIG.

FIG. 12 is a perspective view showing an example of a conventional camera-integrated VTR.

FIG. 13 is a perspective view showing an example of a conventional camera-integrated VTR.

FIG. 14 is a system diagram showing a configuration of a recording / reproducing system of a VTR section of a conventional camera-integrated VTR.

FIG. 15 is a diagram showing a system for capturing audio by wirelessly using a camera-integrated VTR.

[Explanation of symbols]

 1 Cabinet 4 Electronic View Finder 5 Microphone 6 Battery Fixing Terminal 11, 12 Analog Audio Input Terminal 13 Microphone Audio Input Terminal 14 Analog Audio Output Terminal 15 Analog Video Output Terminal 21, 22, 37, 38 Audio Processing Circuit 23-26,29 Recording processing circuit 31-34, 40 Reproduction processing circuit 35,36,39,65-67,73 Changeover switch 50 Expansion slot 52 Expansion connector 60 Recording system 61,62 Audio input terminal 63 Video input terminal 64 Power output terminal 70 Playback system 71 Audio output terminal 72 Video output terminal 110 Wireless audio input adapter 120 Extension audio input / output adapter 130 Composite video input adapter 140 Component video input adapter

Claims (8)

[Claims] 1. A signal processing apparatus comprising an expansion slot in which an expansion connector having terminals for recording signal input or reproduction signal output is arranged. 2. The signal processing device according to claim 1, wherein the recording signal or the reproduction signal is an audio signal. 3. The signal processing device according to claim 1, wherein the recording signal or the reproduction signal is a video signal. 4. An expansion adapter detection section for detecting that an expansion adapter has been inserted into the expansion slot, and a recording signal by selectively extracting the first signal and the second signal output from the expansion adapter. And a switch control means for controlling the switch circuit to take out the second signal when the expansion adapter detection unit detects that the expansion adapter is inserted in the expansion slot. The signal processing device according to claim 1, further comprising: 5. An expansion adapter for use by being inserted into an expansion slot of a signal processing device provided with an expansion connector having terminals for inputting a recording signal or outputting a reproduction signal, wherein the expansion adapter is for inputting the recording signal. An extension adapter having a connector terminal connected to a terminal for outputting a reproduction signal. 6. The extension according to claim 5, further comprising an additional signal input terminal and a signal path for directly or processing a signal supplied to the additional signal input terminal and supplying the signal to the connector terminal. adapter. 7. The extension adapter according to claim 5, further comprising: an extension signal output terminal; and a signal path for directly or processing a signal obtained at the connector terminal and supplying the extension signal output terminal to the extension signal output terminal. . 8. A wireless reception unit for receiving and processing a wireless signal, and a signal path for directly or processing a signal output from the wireless reception unit and supplying the signal to the connector terminal. Expansion adapter according to item 5.