JP2001332991A - Millimeter wave-band transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive with optimal sensitivity by providing a receiver, so as to control the receiving direction of an antenna, installing the receiver at an arbitrary place or easily moving the arbitrary place and automatically following the direction of the antenna in the optimal receiving direction. SOLUTION: The millimeter wave-band transmitter/receiver is provided with a transmitter 14 for converting the received broadcasting waves of plural kinds to millimeter waves and transmitting them and a receiver 15, having a receiving antenna for receiving the millimeter waves and a converting means for converting the millimeter waves, received by the receiving antenna to the broadcasting waves at least, and a changing means 19 is provided for changing the receiving direction of the receiving antenna to the arriving direction of millimeter waves and this change means is provided with a control means for controlling the receiving direction of the receiving antenna, corresponding to a receiving state detected from the received broadcasting waves.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a millimeter-wave band transmitting / receiving apparatus, and more particularly, to terrestrial broadcasting such as VHF, UHF, and the like.
The present invention relates to a millimeter-wave band transmitting / receiving apparatus that wirelessly transmits a plurality of types of satellite broadcast waves such as S and CS using millimeter waves.

[0002]

2. Description of the Related Art Currently, a plurality of analog broadcasts such as terrestrial broadcasts (VHF, UHF) and satellite broadcasts (BS, CS) have been realized. In addition, BS digital broadcasting and terrestrial digital broadcasting are scheduled to be started with the introduction of digital broadcasting in the future.

[0003] Generally, TV broadcasts are received by connecting a signal from an antenna to an antenna terminal of a receiver through an antenna cable.

[0004] FIG. 11 shows a T generally used at present.
FIG. 1 is a diagram illustrating an example of a V broadcast receiving system.

[0005] Here, when receiving satellite broadcasting, 12
The signal in the GHz band is transmitted to the BS antenna 11 and the CS antenna 10
, Respectively, and converted into a 1.2 GHz band IF signal (intermediate frequency band) by a low noise converter provided in the immediate vicinity of each antenna.
1, 82 and one or more BS-TV receivers 17 and CS-TVs indoors from outside through antenna terminals 80
Connected to receiver 18.

When receiving terrestrial broadcasting, VHF
After mixing signals of the radio frequency bands of the antenna 12 and the UHF antenna 13, the coaxial cables 83 and 84 and one or more TV receivers 16 in each room are connected by coaxial cables via the antenna terminals 80.

[0007] However, as the digitalization of broadcasting and communication progresses, the number of media increases rapidly, and the available content increases. As the number of media increases, the number of STBs (set-top boxes) and receivers installed increases, and the wiring of antenna cables from the receiving antenna to the receiver tends to be complicated.

Conventionally, in order to solve this problem, it has been proposed to collectively receive received terrestrial broadcasts and satellite broadcasts and transmit the received broadcast waves at one time by using 60-GHz millimeter-wave radio waves. Have been. This is to transmit the signals received by the already installed antennas 10, 11, 12, 13 to the millimeter-wave transmitter provided at a predetermined place in the room via the antenna cables 81, 82, 83, 84, From the millimeter wave transmitter, for example, the frequency is 60 GH
The signal is transmitted to a millimeter wave receiver provided in each STB and each receiver by a millimeter wave in the z band,
TB, which transmits a signal to the antenna terminal of the receiver.

[0009]

In such a conventional millimeter wave band transmitting and receiving apparatus, when a millimeter wave in the 60 GHz band is transmitted from the millimeter wave transmitting apparatus to the millimeter wave receiving apparatus,
As shown in FIG. 12, the transmitting antenna 1 of the millimeter wave transmitting device
10 and the receiving sensitivity characteristics of the receiving antenna 111 of the millimeter wave receiving apparatus generally have a radiation angle of 1 relative to the directional characteristics of each antenna.
12 and the reception angle 113 are in the range of 10 degrees to 40 degrees, and a sensitivity of about 10 to 30 dBi can be obtained in this range.

However, as the directional characteristic, the transmission angle 1
12 and the receiving angle 113 are very narrow, and it is very difficult to adjust the direction and positional relationship of the antennas of the millimeter wave transmitting device and the millimeter wave receiving device in order to obtain a predetermined receiving sensitivity.

Further, as millimeter-wave applications progress, a plurality of devices will be present in the same room, which may cause interference, which may lead to a reception failure and a problem that reception may not be possible.

In view of the above-mentioned various problems, an object of the present invention is to provide a receiving device in an adjustable position so that the receiving device can be installed at an arbitrary place and can be installed at an arbitrary place. It is an object of the present invention to provide a millimeter-wave band transmission / reception device that facilitates movement and automatically receives an antenna in an optimal direction to enable reception with optimal sensitivity.

[0013]

The present invention employs the following means in order to solve the above-mentioned problems.

[0014] The first means is a transmitting device for converting a plurality of types of received broadcast waves into millimeter waves and transmitting the millimeter waves,
In a millimeter wave band transmitting and receiving device comprising a receiving antenna for receiving the millimeter wave, and a receiving device having a conversion unit for converting a millimeter wave received by the receiving antenna to the broadcast wave, the receiving direction of the receiving antenna is A change means for changing a direction in which a millimeter wave arrives is provided.

A second means is the first means, wherein the changing means is provided with a control means for controlling a receiving direction of the receiving antenna according to a receiving state detected from the received broadcast wave. It is characterized by.

[0016] The third means is the first means or the second means, wherein the transmitting means transmits to the transmitting apparatus a detection signal for detecting the presence or absence of the operating state of the receiving apparatus, and the transmitting means. The apparatus is provided with receiving means for receiving the detection signal transmitted from the transmitting means, and power supply control means for controlling turning on and off of the power of the transmitting apparatus based on the received detection signal. I do.

A fourth means is the third means, wherein the detection signal transmitted from the transmitting means to the receiving means is transmitted by any one of an infrared ray, a UHF radio signal, and an ISM band radio signal. And

The fifth means includes a converting means for converting at least a plurality of types of received broadcast waves into millimeter waves, a transmitting device having a transmitting antenna for transmitting the millimeter waves, and at least receiving the millimeter waves. In a millimeter wave band transmitting / receiving apparatus comprising: a receiving antenna, and a receiving apparatus having a conversion unit for converting the received millimeter wave to the broadcast wave, the reception apparatus relates to a reception state detected from the received broadcast wave. Receiving state control means for outputting a control signal, and transmission means for transmitting a control signal output from the reception state control means, and receiving means for receiving the control signal in the transmitting device; and Control means for controlling a transmission direction of the transmission antenna is provided.

A sixth means is the fifth means, wherein the control signal transmitted from the transmitting means to the receiving means is transmitted by any one of an infrared ray, a UHF radio signal, and an ISM band radio signal. And

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a diagram showing a configuration of a TV reception system using millimeter wave wireless transmission according to the present embodiment.

In FIG. 1, reference numeral 14 denotes a signal provided at a predetermined place in a room, and transmits signals received by antennas 10, 11, 12, and 13 to antenna cables 81, 82, 83, and 8, respectively.
After receiving the signal through the receiver 4, the millimeter wave transmitter converts the signal into a millimeter wave in the 60 GHz band, and transmits the signal to a millimeter wave receiver, which will be described later.
B, a millimeter wave receiver for transmitting to the antenna terminal of the receiver,
An antenna direction controller 19 controls the direction of the receiving antenna.

The other configuration corresponds to the configuration of the same reference numeral shown in FIG.

FIG. 2 is a block diagram showing a configuration of the millimeter wave receiving device 14 and the millimeter wave transmitting device 15 shown in FIG.

In FIG. 1, reference numeral 21 denotes a millimeter wave transmitting device 14.
As described in detail later, a frequency arrayer converts a signal input to the receiver into a predetermined frequency array, an up converter 22 converts various broadcast signals after the frequency array into a frequency of a 60 GHz band, and a millimeter wave A transmitting antenna of the transmitting device 14, 24 is a receiving antenna of the millimeter wave receiving device 15, 25
Is a downconverter for converting the received 60 GHz band frequency to the original frequency, and 26 is a frequency reverse arrayer for returning the signal whose frequency array has been changed by the frequency arrayer 21 to the original frequency array.

Next, the operation of the millimeter wave transmitter 14 and the millimeter wave transmitter 15 will be described with reference to FIG.

In the current TV broadcast, as shown in FIG. 3A, the IF frequency input to the frequency arrayer 21 of the millimeter wave transmitter 14 is a terrestrial broadcast (VHF / UHF band),
BS broadcast and CS broadcast are arranged in this order. When up-converted to the 60 GHz band in this frequency order, VHF
Since the frequency of the signal in the / UHF band is low, the up-converted frequency comes close to the local oscillation wave which is originally radiated from the transmitting antenna 23 without being radiated. Therefore, as shown in FIG. 3B, the terrestrial signal (UHF)
/ VHF) is frequency-converted by the frequency arrayer 21 into a frequency band above the CS signal. That is, if the terrestrial signal is up-converted as it is, it will be removed together with the local oscillation wave. Therefore, the frequency is temporarily converted to another frequency band (for example, 2 GHz band) by the frequency arrayer 21 at the intermediate frequency stage. Next, the broadcast waves arranged on the frequency axis in this manner are converted by the up-converter 22 in the millimeter wave transmitting device 14 into 6 waves.
The signal is up-converted into a 0 GHz band to have a radio frequency as shown in FIG. 3C, and is transmitted from the transmission antenna 23 of the millimeter-wave transmitter 14 as a millimeter-wave radio signal to the millimeter-wave receiver 1.
5 is sent.

On the other hand, in the millimeter wave receiving apparatus 15, the millimeter wave signal is received by the receiving antenna 24, the received signal is down converted by the down converter 25, and the down converted signal is input to the frequency reverse arrayer 26. And
As shown in FIG. 3D, the reverse of the frequency arrangement performed by the frequency arrangement unit 21 is performed, and the frequency is converted from the intermediate frequency to the original ground wave frequency.

Next, the configuration of the receiving antenna 24 provided in the millimeter wave receiving device 15 will be described with reference to FIGS.

FIG. 4A is a partial plan view of the receiving antenna 24, FIG. 4B is a partial side view of the receiving antenna 24, and FIG.
(C) is a back view of the receiving antenna 24.

As shown in FIGS. 4A and 4B, a millimeter wave receiving chip 32 is arranged on one surface of the base substrate 30 of the receiving antenna 24, and FIGS. )
As shown in FIG. 7, a patch antenna 31 for reception is attached to the other surface. In addition, as shown in FIG. 4C, the base substrate 30 is provided rotatably with respect to the horizontal frame 33 and the vertical frame 34 via the rotation shaft 35. Therefore, the base board 30 can adjust the receiving direction with respect to the horizontal frame 33 and the vertical frame 34, and can control the receiving antenna 24 so that the optimum receiving sensitivity can be obtained by control from the outside of the receiving antenna 24 described later. The orientation can be adjusted.

FIG. 5 is a diagram showing a structural example different from the receiving antenna 24 shown in FIG.

FIG. 5A is a partial plan view of the receiving antenna 24, FIG. 5B is a partial side view of the receiving antenna 24, and FIG.
FIG. 5C is a partial rear view of the receiving antenna 24, and FIG.
As shown in (a) and (b), the receiving patch antenna 3 is provided on one surface of the receiving antenna 24 on the base substrate 40.
1 are arranged, and as shown in FIGS. 5B and 5C,
On the other surface, a receiving patch antenna 31 and a millimeter wave receiving chip 32 are attached. In these drawings, a rotation axis, a horizontal frame, and a vertical frame provided on the base substrate 40 for changing the direction of the receiving antenna 24 are omitted.

FIG. 6 is a diagram showing a structural example different from the receiving antenna 24 shown in FIGS.

FIG. 6A is a plan view of the receiving antenna 24.
FIG. 6B is a side view of the receiving antenna 24, and FIG. 6C is a rear view of the receiving antenna 24, and FIGS.
As shown in FIG. 7, one patch antenna 92 for reception is arranged on one surface of the base antenna 90 of the receiving antenna 24, and the base
0 is provided rotatably, and FIG. 6 (b),
As shown in (c), one patch antenna 92 for receiving is mounted on the base substrate 90 on the other surface, and the millimeter wave receiving chip 93 is mounted on the other base substrate 91.
Is attached.

In the millimeter wave band, for example, an antenna in the 60 GHz band is ｍｍ wavelength and 2.5 mm, so that the width of each patch conductor is about 2.5 mm and about 3 cm.
It can be composed of a corner dielectric substrate or a dielectric film.

As described above, according to the invention of this embodiment,
In the frequency band of the 60 GHz band, the half wavelength is 2.5 mm in the air, which is about the same as the chip size of the IC, and can be integrated with the IC including the antenna.
Therefore, the size of the transmitting device and the size of the receiving device can be reduced, and a lightweight and small wireless module can be realized.

Next, control of the directional direction of the receiving antenna 15 will be described with reference to FIGS.

FIG. 7 is a block diagram showing a control system of the receiving antenna 15.

In the figure, a driving device 19 includes a driving unit 5.
1 and a control unit 52. The control unit 52 obtains the optimum directivity of the receiving antenna based on the signal for determining the reception state in the subsequent demodulation unit 53, and drives the driving unit 51 based on the result. It controls the receiving antenna of the millimeter wave receiving device 15 in an optimal direction.

The signal received from the millimeter wave receiving device 15 is input to the tuners 16 to 18 of the TV receiver, tuned, and the tuned signal is demodulated and demodulated by the demodulation unit 53 at the subsequent stage. The signal is decoded by the video decoding unit 54 and output from the output terminal 55, and the demodulation unit 53 or the tuners 16 to 18 transmit the AGC (automated) signal.
Attic gain control) signal is output to the control unit 52 as a signal for estimating the maximum sensitivity thereof. The control unit 52 controls the receiving antenna of the millimeter wave receiving device 15 through the driving unit 51 based on the input control signal. Rotation is controlled to obtain the maximum sensitivity.

FIG. 8 is a diagram showing an example of the movement of the receiving antenna 24 operating based on the signal of the driving unit 51. The operation of the receiving antenna 24 is performed by operating the antenna in the horizontal direction to find the maximum sensitivity position. Then, the antenna is rotated in the vertical direction to find the maximum sensitivity position, and the maximum sensitivity points of both are combined to determine the ideal receiving direction of the receiving antenna 24.

In the above description, the AGC signal is used as a signal for determining the receiving sensitivity. However, in the case of terrestrial digital broadcasting, OFDM (orthogonal) is used.
frequency division multipl
ex) The leading value of the synchronization signal of the signal can be used in the same manner. In digital broadcasting, the BER (bit
Since the error rate can be obtained as information, the BER signal can be used as a control signal similar to the above. Also, a CNR signal indicating the signal-to-noise ratio of the received signal can be used as a signal having the same effect.

Next, a second embodiment of the present invention will be described with reference to FIG.

FIG. 9 shows a millimeter wave receiving device 14 and a millimeter wave receiving device 1 in the TV receiving system according to the present embodiment.
5 is a block diagram showing the configuration of FIG.

In the figure, reference numeral 60 denotes a millimeter wave receiving device 15.
Is a detecting unit for detecting whether or not is in the operating state, 61 is a transmitting unit for transmitting the detection signal detected by the detecting unit 60 to the millimeter wave transmitting device 14 by infrared rays, and 62 is a transmitting unit 61 of the millimeter wave receiving device 15 Receiving unit for receiving a detection signal from the
Reference numeral 63 denotes a power control unit of the millimeter wave transmitting device 14 that controls turning on and off of the power of the millimeter wave transmitting device 14 in response to the detection signal received by the receiving unit 62.

Note that the other configuration and the operation as the TV receiving system are the same as those of the first embodiment, and the description is omitted.

Originally, it is not necessary to operate the millimeter wave transmitting device 14 when the millimeter wave receiving device 15 is in an inactive state. What is necessary is just to make the transmission apparatus 14 operate. Therefore, in the present embodiment, the presence or absence of the operation state of the millimeter wave transmitting device 15 is detected, the detection signal is transmitted to the millimeter wave transmitting device 14, and the turning on and off of the millimeter wave transmitting device 14 is controlled. It is assumed that.

More specifically, when any one of the millimeter wave receiving devices 15 is in the operating state, the detecting section 60 of the millimeter wave band transmitting and receiving device 15 in the operating state transmits a detection signal that detects that it is in the operating state. The data is transmitted to the receiving unit 62 via the unit 61.
The power unit control 63 is performed based on the detection signal received by the receiver 62.
To turn on the power of the millimeter-wave transmitting device 14. Conversely, when all of the millimeter wave receivers 14 are in the inactive state, the power of the millimeter wave transmitter 14 is controlled to be off. Here, the transmission means of the control signal from the transmission unit 61 to the reception unit 62 uses the IRD by infrared rays.
The same effect can be expected by superimposing on the signal in the HF band. Alternatively, radio waves in the ISM band may be used.

Next, a third embodiment of the present invention will be described with reference to FIG.

FIG. 10 is a block diagram mainly showing the configuration of the millimeter wave receiving device 14 and the millimeter wave receiving device 15 in the TV receiving system according to the present embodiment.

In the figure, reference numeral 64 denotes a transmitting unit for transmitting a control signal input from the control unit 52 to the millimeter wave transmitting device 14, 65 a receiving unit for receiving a control signal from the millimeter wave receiving device 15, and 66 a receiving unit. An antenna direction control unit that controls the transmission direction of the transmission antenna 23 based on the control signal thus obtained.

The other structures correspond to the structures of the same reference numerals shown in FIGS. 2 and 6 shown in the first embodiment, and therefore the description is omitted.

As described above, the millimeter wave transmitting device 14
The directivity of the transmitting antenna 23 is also narrowed, like the receiving antenna 24, to increase the sensitivity. For this reason,
Unless the transmitting antenna 23 is oriented in an appropriate direction, the receiving antenna 24 cannot receive with high sensitivity.
Therefore, in the invention of the present embodiment, the transmitting direction of the transmitting antenna is controlled in a proper direction by the driving signal from the antenna direction control unit 66 based on the signal received by the millimeter wave receiving device 15. Is what you do.

Specifically, the demodulation unit 54 or the tuner 1
The AGC signals output from 6 to 18 are sent to the control unit 52, and the control unit 52 sends the input control signal indicating the reception sensitivity to the drive unit 51 and also sends it to the transmission unit 64.
The control signal input to the transmitting unit 64 is transmitted to the millimeter wave transmitting device 1
4 is transmitted to the antenna direction controller 66 via the receiver 65 of FIG. The antenna direction control unit 66 determines the optimal transmission direction of the transmission antenna 23 based on the control signal, and controls the transmission antenna 23 in the optimal direction.

Note that A is a control signal representing the reception sensitivity.
Although GC signals were used, OFD is used for digital terrestrial broadcasting.
The leading value of the synchronization signal of the M signal can be used similarly,
In digital broadcasting, the BER can be obtained as information from the demodulation unit. Therefore, the BER signal can be used as the same control signal as described above. As a means for transmitting the control signal to 65, an IRD using infrared rays may be used, or may be superimposed on a signal in the UHF band. Also ISM
Band radio waves may be used.

As described above, according to the invention of each of the above-described embodiments, since the coaxial cord for the antenna of the TV receiver or the like is replaced with the millimeter-wave radio, complicated wiring and restrictions on the installation place are eliminated, so that it can be used indoors. If it is, a small TV or a personal computer or a video camera with a TV tuner can be used freely and anywhere.

By synchronizing the phase of the UHF signal used for polarization signal control with the reference signal of the local oscillator of the UHF band radio unit that generates this signal, a stable millimeter wave transmission / reception system with less noise components can be obtained. can do.

[0059]

According to the first aspect of the present invention, since the antenna of the receiving device can be adjusted, the receiving device can be set at an arbitrary location and the receiving device can be moved to an arbitrary location. Can be.

According to the invention described in claim 2 of the present application, the antenna can be automatically tracked without being aware of the direction of the antenna of the receiving device, so that it is possible to receive with optimum sensitivity.

According to the third and fourth aspects of the present invention, since the power supply of the transmission device can be controlled, unnecessary power consumption of the transmission device can be reduced.

According to the fifth and sixth aspects of the present invention, the direction of the transmitting antenna can be controlled, so that the transmitting antenna can follow the position of the receiving device, and the receiving sensitivity of the receiving device can be improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a TV reception system using millimeter wave wireless transmission according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a millimeter wave receiver 14 and a millimeter wave transmitter 15 shown in FIG.

FIG. 3 is a diagram for explaining an operation of the millimeter wave transmitter 14 and the millimeter wave transmitter 15 shown in FIG.

FIG. 4 is a diagram showing a configuration of a receiving antenna 24 provided in the millimeter wave receiving device 15 shown in FIG.

5 is a diagram showing another configuration of the receiving antenna 24 provided in the millimeter wave receiving device 15 shown in FIG.

6 is a diagram showing another configuration of the receiving antenna 24 provided in the millimeter wave receiving device 15 shown in FIG.

FIG. 7 is a block diagram showing a control system of a receiving antenna 15 shown in FIG.

8 is a diagram for explaining the movement of the receiving antenna 24 that operates based on the signal of the driving unit 51 shown in FIG.

FIG. 9 shows a millimeter wave receiver 14 and a millimeter wave receiver 1 in a TV reception system according to a second embodiment of the present invention.
5 is a block diagram showing the configuration of FIG.

FIG. 10 is a block diagram mainly showing a configuration of a millimeter wave receiving device 14 and a millimeter wave receiving device 15 in a TV receiving system according to a third embodiment of the present invention.

FIG. 11 is a diagram illustrating a configuration of a TV reception system using millimeter wave wireless transmission according to the related art.

FIG. 12 is a diagram illustrating reception sensitivity characteristics of a transmission antenna 110 of the millimeter wave transmission device and a reception antenna 111 of the millimeter wave reception device.

[Explanation of symbols]

 Reference Signs List 10 CS antenna 11 BS antenna 12 VHF antenna 13 UHF antenna 14 Millimeter wave transmitter 15 Millimeter wave receiver 16 VHF / UHF tuner 17 BS tuner 18 CS tuner 19 Antenna direction control unit 20 Millimeter wave transmitter input terminal 21 Frequency arrayer 22 60 GHz up-converter 23 transmitting antenna 24 receiving antenna 25 60 GHz down-converter 26 frequency reverse arrayer 27 RF / IF signal output terminal 30 base board (antenna board) 31 patch antenna 32 millimeter wave receiving chip (millimeter wave receiving element) 33 horizontal frame 34 vertical frame 40 base substrate (antenna substrate) 51 antenna driving unit 52 control unit 53 demodulation unit 54 decoding unit 55 TS signal output terminal 60 detection unit 61 transmission unit 62 reception unit 63 power supply control Unit 64 transmitting unit 65 receiving unit 66 antenna direction control unit 81 CS antenna cable 82 BS antenna cable 83 VHF antenna cable 84 UHF antenna cable 90 upper substrate 91 lower substrate 92 patch antenna 93 millimeter wave receiving chip (millimeter wave receiving element) 110 transmission Antenna 111 Receiving antenna 112 Radiating angle of transmitting antenna 113 Receiving angle of receiving antenna

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H04N 5/44 H04N 5/44 AZ 7/20 630 7/20 630 F term (reference) 5C025 AA03 AA06 AA07 AA08 AA09 BA16 BA30 DA04 DA10 5C056 FA05 FA11 GA02 GA20 HA01 HA20 5C064 DA02 DA08 5J021 AA01 AB06 DA02 EA04 GA02 HA03 JA07 5K062 AA07 AA08 AA09 AB05 AB12 AB13 AC01 AG01 BF01

Claims (6)

[Claims] 1. A transmitting apparatus for converting a plurality of types of received broadcast waves into millimeter waves and transmitting the converted broadcast waves, at least a receiving antenna for receiving the millimeter waves, and transmitting the millimeter waves received by the receiving antenna to the broadcast waves. And a receiving device having a converting means for converting to a millimeter wave band, wherein a changing means for changing a receiving direction of the receiving antenna to a direction in which the millimeter wave arrives is provided. apparatus. 2. The millimeter according to claim 1, wherein the changing unit includes a control unit that controls a receiving direction of the receiving antenna according to a receiving state detected from the received broadcast wave. Waveband transceiver. 3. A transmitting means for transmitting to the transmitting device a detection signal for detecting whether the receiving device has an operating state of the receiving device, and receiving the detection signal transmitted from the transmitting means to the transmitting device. 2. The apparatus according to claim 1, further comprising a receiving unit, and a power control unit that controls turning on and off of the power of the transmitting device based on the received detection signal.
Alternatively, the millimeter-wave band transmitting / receiving device according to claim 2. 4. The detection signal transmitted from the transmitting means to the receiving means is an infrared ray, a UHF radio signal, or an ISM
4. The millimeter wave band transmitting / receiving apparatus according to claim 3, wherein the transmission is performed by using any one of band radio signals. 5. A transmitting device having at least a converting means for converting a plurality of types of received broadcast waves into millimeter waves, and a transmitting device having a transmitting antenna for transmitting the millimeter waves, a receiving antenna for receiving at least the millimeter waves, and A millimeter wave band transmission / reception device comprising: a reception device having a conversion unit that converts the received millimeter wave into the broadcast wave; outputting a control signal related to a reception state detected from the received broadcast wave to the reception device. Receiving state control means,
And transmitting means for transmitting a control signal output from the receiving state control means, receiving means for receiving the control signal in the transmitting device, and control for controlling the transmitting direction of the transmitting antenna by the received control signal. A millimeter-wave band transmitting / receiving apparatus characterized by comprising means. 6. The control signal transmitted from the transmitting means to the receiving means is an infrared ray, a UHF radio signal, or an ISM
6. The millimeter-wave band transmitting / receiving apparatus according to claim 5, wherein the transmission is performed by using any one of band radio signals.