JP2002156985A - Reproduction system, recording and reproduction device, and wireless microphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproduction system, a recording and reproducing device, and a wireless microphone which are small-sized and easy to operate. SOLUTION: The voice signal sent out of the wireless microphone 2 is made into a radio wave signal using FM modulation of an ultrashort wave or microwave, so that the voice signal can be received by an antenna, a tuner, a signal processing circuit, etc., for broadcast signal reception of the recording and reproducing device 1. Further, the wireless microphone 2 is provided with an operation part 21 to make it possible to remotely operate the recording and reproducing device 1 with an infrared-ray signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless microphone and a recording / reproducing apparatus which superimposes a signal representing audio input to the wireless microphone on a signal representing data relating to audio and video read from a recording medium and outputs the signal. And a recording / reproducing apparatus used in the reproducing system, and a wireless microphone used in the reproducing system.

[0002]

2. Description of the Related Art For use in so-called karaoke, a recording / reproducing apparatus for recording or reproducing data on a recording medium such as a video tape, and a microphone are provided. The recording medium on which the data is recorded is mounted on the recording and reproducing apparatus, and when reproducing the data recorded on the recording medium, a signal representing the data and a signal representing the sound input to the microphone are superimposed and output. There is a playback system that does.

In such a reproducing system, the reproduced video is displayed on the screen of a television receiver or the like, and the reproduced accompaniment music and the sound input to the microphone are output from a speaker. For this reason, the sound output from the speaker may be input to the microphone again, and an oscillation phenomenon called howling may occur. When this phenomenon occurs, the user operates the operation button provided on the speaker or the infrared ray. It has been necessary to adjust the volume level of the speaker by operating a speaker remote control device or the like using such a method.

Japanese Patent Laid-Open Publication No. Hei 10-70472 discloses a microphone provided with an operation button for adjusting the volume level of a speaker. When the user adjusts the volume level, the user operates the operation button. By operating, there is no need for complicated operations such as moving to the side of a speaker or switching from a microphone to a remote control device, and by using a wireless microphone that transmits audio signals wirelessly, the cable is eliminated. A disclosed microphone is disclosed.

[0005]

However, in the reproduction system using the microphone disclosed in Japanese Patent Laid-Open No. 10-70472, an audio signal of a radio signal transmitted from the microphone is received and demodulated. It is necessary to provide a mechanism for performing this in the recording / reproducing apparatus, and there is a problem that the recording / reproducing apparatus becomes large and the manufacturing cost increases.

Further, in the reproducing system using a microphone disclosed in Japanese Patent Application Laid-Open No. 10-70472, the volume level of a speaker can be easily adjusted. In order to perform operations such as music selection or the like, approach the recording / reproducing device, operate the operation buttons provided on the recording / reproducing device, or switch to a remote controlling device for the recording / reproducing device, Has to be operated, and there is still a problem that a complicated operation is still required.

The present invention has been made in view of the above circumstances, and receives an audio signal transmitted from a wireless microphone at a receiving unit for receiving a broadcast signal such as a television signal provided in a recording / reproducing apparatus, and demodulates the signal. By doing so, it is not necessary to provide a dedicated receiving section for the audio signal transmitted from the microphone in the recording / reproducing apparatus, and it is possible to reduce the size of the recording / reproducing apparatus and reduce the production cost. An object of the present invention is to provide a recording / reproducing apparatus to be used and a wireless microphone to be used in the reproducing system.

Another object of the present invention is to provide a wireless microphone having a receiving unit for receiving an operation on the recording / reproducing apparatus and a transmitting unit for transmitting an operation signal representing the received operation, and receiving the operation signal. Unit is provided in the recording / reproducing device, so that remote control of the recording / reproducing device can be performed by a wireless microphone,
When performing operations such as playing back or stopping playback of data on a recording medium or selecting a music piece, complicated operations such as moving to a side of the recording / reproducing device or switching to a remote control device for operating the recording / reproducing device are performed. An object of the present invention is to provide a reproducing system which does not require an operation and has improved operability, a recording / reproducing device used for the reproducing system, and a wireless microphone used for the reproducing system.

[0009]

A playback system according to a first aspect of the present invention receives a broadcast signal representing data relating to audio and video, and receives and demodulates a broadcast signal, and reads and writes data relating to audio and video to and from a recording medium. In a reproduction system including a recording / reproducing device having a read / write unit and a wireless microphone transmitting an audio signal representing audio, the reception unit is transmitted by the wireless microphone when the read / write unit is reading data. An audio signal is received, and the received audio signal is demodulated. The recording / reproducing device represents a data read by the read / write unit, the demodulated signal obtained by demodulating the audio signal by the reception unit. It is characterized by being superimposed on a reproduction signal and output.

In the case of the reproduction system according to the first invention, the audio signal transmitted from the wireless microphone is received and demodulated by the broadcast signal receiving receiver of the recording / reproducing apparatus, so that the audio signal is transmitted from the microphone. It is not necessary to provide a receiving section dedicated to the audio signal in the recording / reproducing apparatus, and it is possible to reduce the size of the recording / reproducing apparatus and to expect a reduction in manufacturing cost.

[0011] In a reproduction system according to a second aspect of the present invention, in the reproduction system according to the first aspect, the wireless microphone receives an operation for the recording / reproduction device, and transmits an operation signal representing the operation received by the reception unit. A transmitting unit for transmitting, and the recording / reproducing apparatus has a receiving unit for receiving an operation signal transmitted from the wireless microphone, and is configured to operate according to the operation signal received by the receiving unit. It is characterized by the following.

[0012] In the case of the reproducing system according to the second aspect of the present invention, a receiving unit for receiving an operation for the recording / reproducing apparatus;
A transmitter for transmitting an operation signal representing the received operation is provided in the wireless microphone, and a receiver for receiving the operation signal is provided in the recording / reproducing device, so that the wireless microphone can remotely control the recording / reproducing device. In addition to adjusting the volume level, when performing operations such as reproduction or stop of reproduction of data on the recording medium, or selection of music, the operation is performed to move to the side of the recording / reproducing device or to operate the recording / reproducing device. Operability can be improved without the need for complicated operations such as switching to a remote control device.

A recording / reproducing apparatus according to a third aspect of the present invention includes a receiving unit for receiving and demodulating a broadcast signal representing data relating to audio and video, and a reading / writing unit for reading and writing data relating to audio and video to a recording medium. In the recording / reproducing device, the receiving unit receives an audio signal different from the broadcast signal when the read / write unit is reading data, and demodulates the received audio signal. An output unit for superimposing a demodulated signal obtained by demodulating the audio signal on a reproduction signal representing data read by the read / write unit and outputting the signal is provided.

In the case of the recording / reproducing apparatus according to the third invention, the audio signal is received by the receiving section for receiving the broadcast signal,
By demodulation, there is no need to provide a receiving unit dedicated to an audio signal, so that it is possible to reduce the size of the device and reduce manufacturing costs.

[0015] A recording / reproducing apparatus according to a fourth aspect of the present invention is the recording / reproducing apparatus according to the third aspect of the present invention, further comprising a receiving section for receiving an operation signal representing a predetermined operation, and according to the operation signal received by the receiving section. It is characterized by being operated.

In the case of the recording / reproducing apparatus according to the fourth aspect of the present invention, the recording / reproducing apparatus can be remotely operated by receiving an operation signal and performing an operation in accordance with the operation signal. When performing operations such as data reproduction or stop of reproduction or music selection, complicated operations such as moving to the side of the device are not required, and operability can be improved.

A wireless microphone according to a fifth aspect of the present invention is a wireless microphone for transmitting an audio signal representing an audio, wherein the audio signal is a signal obtained by frequency-modulating an ultrashort wave or an ultrashort wave carrier.

[0018] In the case of the wireless microphone according to the fifth aspect of the present invention, the broadcast signal is transmitted by transmitting an audio signal obtained by frequency-modulating an ultrashort or ultrahigh frequency carrier, similarly to the audio signal portion of a broadcast signal such as a television signal. It is possible to receive the audio signal with a device having a receiving unit for receiving, and it is not necessary to prepare a device having a receiving unit dedicated to the audio signal.

A wireless microphone according to a sixth invention is the wireless microphone according to the fifth invention,
It is characterized by including a receiving unit that receives an operation on an external device, and a transmitting unit that transmits an operation signal representing the operation received by the receiving unit.

[0020] In the case of the wireless microphone according to the sixth aspect of the present invention, a remote control of the external device is provided by including a receiving unit for receiving an operation on the external device and a transmitting unit for transmitting an operation signal indicating the received operation. When the external device is operated, complicated operations such as moving to the side of the external device are not required, and operability can be improved.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a schematic diagram showing a configuration of an embodiment of a reproduction system according to the present invention.

In FIG. 1, reference numeral 1 denotes a recording / reproducing apparatus for recording / reproducing data on / from a video tape, and 2 denotes a wireless microphone. The wireless microphone 2 is provided with an operation unit 21 that receives an operation for the recording / reproducing device 1.

FIG. 2 is a block diagram showing the configuration of the wireless microphone 2. Wireless microphone 2
Is a microphone 22, a modulation circuit 23, a transmission circuit 2
4 and an antenna 25. In such a wireless microphone 2, the input sound is converted into an electric signal by the microphone 22 and output to the modulation circuit 23. The modulation circuit 23 performs FM modulation (frequency modulation) on the carrier using the electric signal as a modulation signal, and outputs the result as an audio signal. The output audio signal is amplified to a required size by the transmission circuit 24, transmitted to the antenna 25, and transmitted to the outside by the antenna 25.

Note that the audio signal transmitted from the antenna 25 to the outside is a weak radio wave having a certain strength that can be sufficiently received in the same room or the same room.

The wireless microphone 2 includes an operation unit 21, a control circuit 26, a transmission circuit 27,
And an infrared ray generating unit 28. When an operation from a user is received by the operation unit 21, the operation unit 21 supplies a signal representing this operation to the control circuit 26, and the control circuit 2
6 outputs a digital signal corresponding to the operation. The digital signal is input to the transmission circuit 27 and is converted into a pulse signal. Then, the pulse signal is given to the infrared ray generating section 28, and the infrared ray generating section 28 generates an infrared ray according to the pulse signal, and transmits an operation signal according to the operation to the recording / reproducing apparatus 1. I have.

FIG. 3 is a block diagram showing the configuration of the recording / reproducing apparatus 1. The recording / reproducing apparatus 1 includes an antenna 11, a tuner 12, a signal processing circuit 13, and a video output terminal 14.
, An audio output terminal 15 and a recording / reproducing head 16. The broadcast signal of the television broadcast is transmitted through the antenna 11
, Are selectively amplified by the tuner 12, converted into an intermediate frequency signal, and separated into a video intermediate frequency signal and an audio intermediate frequency signal.

At the time of non-recording, the video intermediate frequency signal is output from the video output terminal 14 to the outside. On the other hand, the audio intermediate frequency signal is supplied to the signal processing circuit 13, subjected to FM detection by the signal processing circuit 13, and output from the audio output terminal 15.

At the time of recording, the video intermediate frequency signal is output from the video output terminal 14 to the outside, and the video intermediate frequency signal and the audio intermediate frequency signal are output to the signal processing circuit 13.
Given to. The video intermediate frequency signal is supplied to the signal processing circuit 1
3, the signal is detected and amplified, and separated into a carrier chrominance signal and a luminance signal. The signal processing circuit 13 FM-modulates the luminance signal, frequency-converts the carrier chrominance signal, mixes the two, and outputs the result. The output signal is transmitted to the recording / reproducing head 16.
Is recorded on a video tape. On the other hand, the audio intermediate frequency signal is subjected to FM detection by the signal processing circuit 13,
The audio signal is output from the audio output terminal 15 to the outside, and is subjected to a predetermined compensation process and amplified. Then, it is output to the recording / reproducing head 16 and recorded on a video tape by the recording / reproducing head 16.

At the time of reproduction, data relating to video and audio data recorded on a video tape are read out by the recording / reproducing head 16, and a video reproduction signal corresponding to the data relating to the video is processed by the signal processing circuit 13. Given to. The signal processing circuit 13 separates the video reproduction signal into a carrier chrominance signal and a luminance signal, performs FM detection on the luminance signal, frequency-converts the carrier chrominance signal, mixes the two, and outputs the result as a video intermediate frequency signal. . The output video intermediate frequency signal is output from the video output terminal 14 to the outside.

The audio signal transmitted from the antenna 25 of the wireless microphone 2 is an ultrahigh-frequency or ultrahigh-frequency radio wave, similarly to a broadcast signal of a television broadcast. Further, at the time of reproduction, the selection frequency of the tuner 12 is switched by the control unit 19 to be described later, so as to match the frequency of the audio signal. This allows the audio signal to be transmitted to the antenna 11 during reproduction.
Since the audio signal is received by the tuner 12 and does not include a video portion, the audio signal is converted by the tuner 12 into only an audio intermediate frequency signal and supplied to the signal processing circuit 13. At this time, an audio reproduction signal corresponding to the data relating to the audio read by the recording / reproduction head 16 is also supplied to the signal processing circuit 13. And the signal processing circuit 13
Performs FM detection on the audio intermediate frequency signal, superimposes it on the audio reproduction signal, and outputs the signal from an audio output terminal 15. The output signal is input to a speaker such as a television receiver (not shown) connected to the audio output terminal 15 and output as audible sound.

Further, the recording / reproducing apparatus 1 includes an infrared detector 1
7, a receiving circuit 18, and a control unit 19. The infrared detector 17 is provided on the front panel of the recording / reproducing apparatus 1, detects infrared rays generated by the infrared generator 28 of the wireless microphone 2, and generates a pulse signal corresponding to the infrared rays. As a result, the operation signal transmitted from the wireless microphone 2 can be received. The pulse signal emitted from the infrared detection unit 17 is supplied to a reception circuit 18, which converts the supplied pulse signal into a digital signal and outputs the digital signal to a control unit 19. Control unit 19
Inputs the digital signal, and controls the driving of each unit of the recording / reproducing apparatus 1 so that the recording / reproducing apparatus 1 operates according to the operation signal.

In the present embodiment, the configuration in which the recording / reproducing apparatus 1 can reproduce or record data representing video and audio on a video tape has been described. However, the present invention is not limited to this. Versatile Di
Needless to say, the configuration may be such that data representing video and audio can be reproduced or recorded on other recording media such as sk, Digital Video Disc).

With the above arrangement, a video tape on which video of accompaniment music and lyrics is recorded is mounted on the recording / reproducing apparatus 1, and when reproducing the video tape, a video intermediate frequency signal is output from the video output terminal 14; The video of the lyrics is displayed on the screen of a television receiver (not shown) connected to the video output terminal 14, and the signal representing the sound input to the wireless microphone 2 and the signal representing the accompaniment music are superimposed on each other. Output from the output terminal 16,
Sound and accompaniment music are output from the speaker of the television receiver. When an operation such as reproduction, stop of reproduction, fast forward, or rewind is performed on the operation unit 21 of the wireless microphone 2, an operation signal of an infrared signal representing the operation is transmitted from the wireless microphone 2, and the recording / reproducing device is operated. 1 is received by the infrared detector 17,
In response to the operation, the recording / reproducing apparatus 1 performs operations such as reproduction, stop of reproduction, fast forward, and rewind.

Therefore, it is not necessary to provide a dedicated receiving section for receiving the audio signal transmitted from the wireless microphone 2 in the recording / reproducing apparatus 1, so that the recording / reproducing apparatus 1 can be downsized and the manufacturing cost can be reduced. Can be expected,
The remote control of the recording / reproducing apparatus 1 can be performed by the operation unit 21 provided in the wireless microphone 2. Therefore, for example, when the user singing operates the recording / reproducing apparatus 1, the user approaches the recording / reproducing apparatus 1 and operates. No need to do.

[0035]

As described in detail above, in the case of the reproduction system according to the first invention, the audio signal transmitted from the wireless microphone is received by the broadcast signal receiving receiver of the recording / reproduction device and demodulated. By doing so, there is no need to provide a dedicated receiving section for the audio signal transmitted from the microphone in the recording / reproducing device, and it is possible to reduce the size of the recording / reproducing device and to expect a reduction in manufacturing cost.

In the case of the reproducing system according to the second invention, a receiving unit for receiving an operation for the recording / reproducing apparatus;
A transmitter for transmitting an operation signal representing the received operation is provided in the wireless microphone, and a receiver for receiving the operation signal is provided in the recording / reproducing device, so that the wireless microphone can remotely control the recording / reproducing device. In addition to adjusting the volume level, when performing operations such as reproduction or stop of reproduction of data on the recording medium, or selection of music, the operation is performed to move to the side of the recording / reproducing device or to operate the recording / reproducing device. Operability can be improved without the need for complicated operations such as switching to a remote control device.

In the case of the recording / reproducing apparatus according to the third invention, the audio signal is received by the broadcast signal receiving receiver,
By demodulation, there is no need to provide a receiving unit dedicated to an audio signal, so that it is possible to reduce the size of the device and reduce manufacturing costs.

In the case of the recording / reproducing apparatus according to the fourth invention, the recording / reproducing apparatus can be remotely operated by receiving an operation signal and performing an operation in accordance with the operation signal. When performing operations such as data reproduction or stop of reproduction or music selection, complicated operations such as moving to the side of the device are not required, and operability can be improved.

In the case of the wireless microphone according to the fifth aspect of the present invention, the broadcast signal is transmitted by transmitting an audio signal obtained by frequency-modulating an ultrahigh-frequency or ultrahigh-frequency carrier, similarly to the audio signal portion of a broadcast signal such as a television signal. It is possible to receive the audio signal with a device having a receiving unit for receiving, and it is not necessary to prepare a device having a receiving unit dedicated to the audio signal.

In the case of the wireless microphone according to the sixth aspect of the present invention, by providing a receiving unit for receiving an operation on an external device and a transmitting unit for transmitting an operation signal representing the received operation, remote control of the external device can be performed. The present invention can be performed, and when the external device is operated, a complicated operation such as moving to the side of the external device is not required, and the operability can be improved. To play.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of an embodiment of a reproduction system according to the present invention.

FIG. 2 is a block diagram illustrating a configuration of a wireless microphone.

FIG. 3 is a block diagram illustrating a configuration of a recording / reproducing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 11 Antenna 12 Tuner 13 Signal processing circuit 14 Video output terminal 15 Audio output terminal 16 Recording / reproducing head 17 Infrared detection unit 18 Receiving circuit 19 Control unit 2 Wireless microphone 21 Operation unit 22 Microphone 23 Modulation circuit 24 Transmission circuit 25 Antenna 26 control circuit 27 transmission circuit 28 infrared ray generating section

Claims (6)

[Claims] 1. A recording / reproducing apparatus having a receiving unit for receiving and demodulating a broadcast signal representing data relating to audio and video, and a reading / writing unit for reading / writing data relating to audio and video to and from a recording medium; A wireless microphone for transmitting a signal, wherein the receiving unit receives an audio signal transmitted by the wireless microphone when the read / write unit is reading data, and demodulates the received audio signal. The recording / reproducing apparatus is configured to superimpose a demodulated signal obtained by demodulating the audio signal by the receiving section on a reproduced signal representing data read by the read / write section and output the superimposed signal. A reproduction system characterized by the following. 2. The wireless microphone includes a receiving unit that receives an operation on the recording / reproducing device, and a transmitting unit that transmits an operation signal representing the operation received by the receiving unit. 2. The reproduction system according to claim 1, further comprising a receiving unit that receives an operation signal transmitted from the wireless microphone, and operating according to the operation signal received by the receiving unit. 3. A recording / reproducing apparatus comprising: a receiving unit that receives and demodulates a broadcast signal representing data related to audio and video; and a read / write unit that reads and writes data related to audio and video to a recording medium. Receives an audio signal different from the broadcast signal when the read / write unit is reading data,
An output unit is provided for demodulating a received audio signal, and superimposing a demodulated signal obtained by demodulating the audio signal by the reception unit on a reproduction signal representing data read by the read / write unit and outputting the signal. A recording / reproducing apparatus characterized by the above-mentioned. 4. The recording / reproducing apparatus according to claim 3, further comprising a receiving section for receiving an operation signal indicating a predetermined operation, wherein said receiving section operates according to the operation signal received by said receiving section. apparatus. 5. A wireless microphone for transmitting an audio signal representing an audio, wherein the audio signal is a signal obtained by frequency-modulating an ultrashort wave or an ultrashort wave carrier. 6. The wireless microphone according to claim 5, further comprising: a receiving unit that receives an operation performed on an external device; and a transmitting unit that transmits an operation signal indicating the operation received by the receiving unit.