JP3053680U - Wireless receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] When using a transmitter based on optical communication, the light-receiving element is supported at a position higher than the floor surface and the directionality of light reception is broadened in order to stabilize communication and scattering of the remote control. For this purpose, a plurality of light receiving elements are arranged at intervals, and the light receiving section is also used as a remote control case to facilitate handling. [Structure] An audio signal from a transmitting device, which is connected to an earphone terminal of an audio device and optically modulates and transmits an audio signal,
The receiving device includes a receiver that receives and demodulates by a light receiving element and reproduces as an audible sound by a speaker. A receiving case having a hollow storage case is formed on a top surface of the receiving device, and a plurality of receiving cases are provided at an edge of the receiving case. The infrared light receiving elements are arranged at intervals.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a wireless receiver with a remote control storage case that can listen to electric appliances, particularly TV sounds, at a remote position.

[0002]

[Prior art and its problems]

 Recently, remote control of TV and stereo equipment has been promoted, and remote control devices have been scattered around, and it has been difficult to organize them. In addition, the spread of audio equipment has increased the number of sound sources in the surrounding area, making it difficult to hear, and with aging, the audible sound range has become narrower, making listening inconsistent. Wireless speakers have been used.

In such a conventional apparatus, there are many disadvantages because the audio signal from the audio equipment is simply transmitted and received unilaterally by the FM radio signal or the optical modulation signal. For example, in the case of radio waves, noise from high-frequency equipment hinders clear signal transmission, and in the method of light, the light emitting and light receiving elements have their optical axes narrowed by lenses, so they are limited to communication in a narrow range. Communication did not occur if there was an obstacle blocking the light beam, so it was necessary to lift it up and place it so that the optical axes were aligned.

[0004]

[Means for solving the problems]

The present invention addresses these problems and, in order to stabilize communication and scattering of the remote controller, supports the light-receiving elements above the floor surface, and sets the distance between the light-receiving elements to widen the direction of light reception. The light receiving part is also used as a remote control case to make it easier to handle.

[0005]

Hereinafter, the embodiment will be described with reference to the drawings. 1. An earphone terminal 2 which is well-known as a TV as an audio device is provided on a front surface. Reference numeral 3 denotes a transmitter which supplies an audio signal input via a plug 4 connected to a terminal 2 to an audio modulator 5. A voice carrier of, for example, 2 to 3 MHz is applied from the voice carrier transmitter 6 to the voice modulator 5, and the voice from the TV is FM-modulated by the voice modulator 5. The FM-modulated audio signal is amplified by the high-frequency amplifier 7 and supplied to the LED driver 8, and the infrared light emitting LED 9 is driven according to the output signal.

A receiving device 10 receives an infrared signal from the transmitter 3 and includes a device unit 11 and a storage case 12. Reference numeral 13 denotes a speaker provided in the device section 11, reference numeral 14 denotes a volume control knob, reference numeral 15 denotes a power switch, and reference numeral 16 denotes a range emphasis switch. Reference numeral 17 denotes an infrared light receiving element for receiving a signal from the infrared light emitting LED 9 of the transmitter 3 disposed on the end face of the storage case 12, and a plurality of infrared light receiving elements are provided on the surface of the case 12 at intervals. It is covered by a transparent cover 18.

[0007] Reference numeral 19 denotes an audio signal receiver for receiving an audio carrier signal provided in the equipment section 11, which demodulates the audio signal received by the infrared light receiving element 17 and amplifies the demodulated audio signal by an appropriate low frequency amplifier 20 to make a speaker. Sounds. Reference numeral 21 denotes a power supply, and reference numeral 22 denotes an audio signal adjusting device for emphasizing an audio frequency band in a high frequency range. The demodulated audio signal is extracted by a high-pass filter circuit 23, and a speaker is sounded as emphasized audio in a high frequency range which is easy to hear. This is switched when the switch is turned on by the gamut emphasis switch 16, and is normally skipped.

[0008]

[Effect of the invention]

 This invention is configured as described above, and has the following effects. The so-called hand-held speaker, which listens to the sound of audio equipment at the ear, sounds by optical communication, so that it can be heard with clear sound without the influence of noise. In addition, since the frequency band of the audio signal can be freely selected between normal and treble, it is easy to distinguish between high-pitched sounds for sounds that are difficult to hear and normal low-pitched sounds for music. When used, bass sounds tended to be difficult to hear, but this problem could be easily solved by selecting a switch, making the TV sound louder or moving closer to the TV. It is extremely convenient without any inconvenience. In addition, a storage case that can store remote controls, writing instruments, eyeglasses, etc. protrudes from the main body case, and the infrared light receiving elements are arranged at equal intervals around the protruding distal end. Signals with no directivity can be received at high positions, and reliable transmission can be performed. In addition, by arranging a plurality of light-receiving parts on the outer peripheral surface of the storage case at intervals, even if there is a small article such as a remote controller in the case, a signal can be received by any of the light-receiving elements. If a TV remote control or glasses are stored in the case without disturbing communication, it is convenient without scattering.

[Submission date] May 26, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents] [Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a wireless receiver with a remote control storage case that can listen to electric appliances, particularly TV sounds, at a remote position.

[0002]

[Prior art and its problems]

 Recently, remote control of TV and stereo equipment has been promoted, and remote control devices have been scattered around, and it has been difficult to organize them. In addition, the spread of audio equipment has increased the number of sound sources in the surrounding area, making it difficult to hear, and with aging, the audible sound range has become narrower, making listening inconsistent. Wireless speakers have been used.

[0003] In such a conventional apparatus, there are many disadvantages because the audio signal from the audio equipment is simply transmitted and received unilaterally by the FM radio signal or the optical modulation signal. For example, in the case of radio waves, noise from high-frequency equipment interferes with clear signal transmission, and in the method of light, the light emitting and light receiving elements are narrowed down by the lens, so that communication is limited to a narrow range. Communication was not possible if there was an obstacle that blocked the light beam, so it was necessary to lift it up and place it so that the optical axes were aligned.

[0004]

[Means for solving the problems]

 The present invention addresses these problems and, in order to stabilize communication and scattering of the remote controller, supports the light-receiving elements above the floor surface, and sets the distance between the light-receiving elements to widen the direction of light reception. The light receiving part is also used as a remote control case to make it easier to handle.

[0005]

【Example】

 The embodiment will be described below with reference to the drawings. Reference numeral 1 denotes a TV receiver as an audio device, and a well-known earphone terminal 2 is provided on the front surface. Reference numeral 3 denotes a transmission device, which supplies an audio signal input through a plug 4 connected to the earphone terminal 2 to an audio modulator 5. A voice carrier of, for example, 2 to 3 MHz is applied from a voice carrier transmitter 6 to the voice modulator 5, and the voice from the TV is FM-modulated by the voice modulator 5. The FM-modulated audio signal is amplified by the high-frequency amplifier 7 and supplied to the LED driver 8, and the infrared light emitting LED 9 is driven according to the output signal.

Reference numeral 10 denotes a receiving device for receiving a signal from the transmitter 3 by infrared rays, which is provided in a housing 11 having a storage case 12. Reference numeral 13 denotes a speaker provided in the housing 11, reference numeral 14 denotes a volume control knob, reference numeral 15 denotes a power switch, and reference numeral 16 denotes a range emphasis switch. Reference numeral 17 denotes an infrared light receiving element for receiving a signal from the infrared light emitting LED 9 of the transmitter 3 disposed on the end face of the storage case 12, and a plurality of infrared light receiving elements are provided on the surface of the case 12 at intervals. It is covered by a transparent cover 18.

Reference numeral 19 denotes an audio signal receiver for receiving an audio carrier signal provided in the housing 11, and demodulates the audio signal received by the infrared light receiving element 17, amplifies the demodulated audio signal by an appropriate low-frequency amplifier 20, and outputs a speaker. Sounds. Reference numeral 21 denotes a battery as a power supply, and reference numeral 22 denotes a high-frequency signal amplifier for emphasizing a high-frequency sound frequency band. The high-frequency signal amplifier extracts a demodulated sound signal by a high-pass filter circuit, and converts the demodulated sound signal into high-frequency sound which is easy to hear. The sound is emitted from a speaker, and is switched when the switch is turned on by the tone range emphasis switch 16, and is normally passed through.

[0008]

[Effect of the invention]

 This invention is configured as described above, and has the following effects. The so-called hand-held speaker, which listens to the sound of audio equipment at the ear, sounds by optical communication, so that it can be heard with clear sound without the influence of noise. In addition, since the frequency band of the audio signal can be freely selected between normal and treble, high-pitched sounds can be used for sounds that are difficult to hear, and normal low-pitched sounds can be easily used for music. However, when used, the sound in the low-frequency range tends to be difficult to hear. However, this problem can be easily solved by selecting a switch. The convenience in use is greatly improved without freedom. In addition, a storage case that can store remote controls, writing instruments, eyeglasses, etc. protrudes from the main body case, and the infrared receiving elements are arranged at equal intervals around the protruding tip, so that it is higher than the top of the main body during use. Therefore, it is possible to receive signals without directionality and to perform reliable transmission. In addition, by arranging a plurality of light-receiving parts on the outer peripheral surface of the storage case with an interval between the light-receiving parts, even if there is a small article such as a remote controller in the case, a signal can be received by one of the light-receiving elements. If a TV remote control, glasses, and the like are stored in the case without obstructing communication, it is convenient without scattering.

[Brief description of the drawings]

FIG. 1 is an external view of the device of the present invention.

FIG. 2 is an explanatory diagram of a use state of the invention.

FIG. 3 is an explanatory diagram of another use state of the invention.

FIG. 4 is a configuration diagram of the transmitter of the present invention.

FIG. 5 is a configuration diagram of the receiver of the present invention.

[Explanation of symbols]

 3 Transmitter 10 Receiver 12 Storage Case 16 Sound Emphasis Switch 17 Infrared Light Receiving Element

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[Procedure amendment]

[Submission date] May 26, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Name of device] Wireless receiver

[Utility model registration claims]

[Brief description of the drawings]

FIG. 1 is an external view of the device of the present invention.

FIG. 2 is an explanatory diagram of a use state of the invention.

FIG. 3 is an explanatory diagram of another use state of the invention.

FIG. 4 is a configuration diagram of the transmitter of the present invention.

FIG. 5 is a configuration diagram of the receiver of the present invention.

[Description of Signs] 3 Transmitter 10 Receiving device 12 Storage case 16 Range emphasis switch 17 Infrared light receiving element

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 4

FIG. 5

FIG.

FIG. 2

FIG. 3

Claims (3)

[Utility model registration claims] 1. A receiver connected to an earphone terminal of an audio device, receiving a sound signal from a transmitting device for optically modulating and transmitting a sound signal by a light receiving element, demodulating the sound signal, and reproducing the sound signal as an audible sound by a speaker. A wireless receiving device comprising a receiving device, a hollow storage case formed on a top surface of the receiving device, and a plurality of infrared light receiving elements arranged at an edge of the storage case at intervals. 2. A wireless receiving apparatus wherein a signal received by a light receiving element can be arbitrarily selected by a switch for selecting between normal reproduction and reproduction through a filter for emphasizing high-frequency sound. 3. A receiving case having a hollow storage case formed on a top surface thereof, and a plurality of infrared light receiving elements arranged at intervals around the entire end of the storage case. The wireless receiving device according to claim 1, further comprising a mounting surface on which the receiving device is mounted so as to face the wireless device.