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公开(公告)号：JPH1032424A
公开(公告)日：1998-02-03
申请号：JP20899896
申请日：1996-07-18
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
Abstract: PROBLEM TO BE SOLVED: To provide a parasitic antenna with less coupling loss. SOLUTION: This antenna 2 is composed of first and second antennas 21 and 22 and a power feeding line 23 for connecting them. The first antenna 21 is electrostatically coupled in a close state to the antenna 11 of a radio equipment 1. That is, in the case that the radio equipment 1 functions as a transmitter, a current supplied to the antenna 11 is made to flow to the parasitic antenna 2 through the electrostatic coupling. On the other hand, in the case that the radio equipment 1 functions as a receiver, radio waves sent from the other radio equipment are received by the parasitic antenna 2, thus a voltage is induced and the current made to flow by the induction of the voltage is supplied to the radio equipment 1 through the electrostatic coupling. Also, since the first antenna 21 and the antenna 11 of the radio equipment 1 are orthogonal with each other, they do not interfere with the radiation impedance of each other.
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公开(公告)号：JPH03147404A
公开(公告)日：1991-06-24
申请号：JP28708289
申请日：1989-11-01
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
Abstract: PURPOSE:To realize an antenna-integrated type radio equipment able to decrease the radio wave shield rate by a car body without incurring possibility of theft by providing an antenna self-stand tool separated from a radio equipment and self-standing the antenna. CONSTITUTION:When an instruction to open a garage door is given by a switch to park an automobile into a garage, a high frequency signal corresponding to the instruction is generated by a radio equipment main body 12 and sent to an antenna 12. The high frequency signal radiates as a radio wave from the entire antenna 11. The radiating radio wave led to an antenna support cylinder 131 reaches a receiver side while being propagated through external air because the support cylinder 131 is made of an insulating material. On the other hand, the transmission of radiating radio wave from the main body 12 reaching the upper plate of an antenna mount fixture 133 through the antenna into air is blocked due to the relation of the radiating position. However, since the antenna length of the part led into the support cylinder 131 shares most part of the entire antenna, most of the radiating radio wave is sent in air and most parts of the transmission power is led to the receiver side.
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公开(公告)号：JPH03128537A
公开(公告)日：1991-05-31
申请号：JP26730689
申请日：1989-10-13
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
IPC: H04B7/26
Abstract: PURPOSE:To execute continuous communication without fail by providing a call origination inhibit part and inhibiting call originating operation for fixed time after already started communication is finished when the communication is started by waiting. CONSTITUTION:At the time of waiting, since the reception frequency of a recep tion part 24 is set to a control channel by an instruction from a communication control part 28, a control signal S14 sent out to the control channel is received by the reception part 24 and sent out to a control signal discrimination part 29. When the communication is forcedly finished at time T13, the communication control part 28 executes control so that the control channel can be received by the reception part 24, and starts timer operation as the operation of a timer part 111. When the control signal is received within this period, similar operation is repeated and when such a period t11 is passed without receiving the control signal and the call origination is requested from an operation part 26, control is executed so as to search an idle channel.
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公开(公告)号：JP2006157361A
公开(公告)日：2006-06-15
申请号：JP2004343687
申请日：2004-11-29
Applicant: Toa Corp , ティーオーエー株式会社
Inventor： MATSUMOTO YASUSHI , YOSHIKAWA SUSUMU
Abstract: PROBLEM TO BE SOLVED: To reproduce audio data faithfully to original sound and to improve the sound quality of audio data to be reproduced by making sampling frequencies coincide with each other between a transmitting side and a receiving side and enhancing accuracy in a data transmission system for transmitting a digital sound signal through a network and reproducing the digital sound signal at a receiving terminal side. SOLUTION: In a method for transmitting data, a data transmitter and a data receiver are provided with external clock receiving parts for respectively receiving a clock signal from the outside and sampling clock generating parts for generating a sampling clock for a predetermined frequency on the basis of the clock signal received by the external clock receiving part, wherein the accuracy of external clocks received by the respective external clock receiving parts coincide with each other. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：将音频数据忠实地再现到原始声音，并且通过使发送侧和接收侧之间的采样频率彼此一致来提高要再现的音频数据的声音质量，并提高数据的精度 传输系统，用于通过网络发送数字声音信号，并在接收终端侧再现数字声音信号。 解决方案：在用于发送数据的方法中，数据发送器和数据接收器设置有用于分别从外部接收时钟信号的外部时钟接收部分和用于产生预定频率的采样时钟的采样时钟产生部分 由外部时钟接收部分接收的时钟信号的基础，其中由各个外部时钟接收部件接收的外部时钟的精度彼此一致。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005318375A
公开(公告)日：2005-11-10
申请号：JP2004135394
申请日：2004-04-30
Applicant: Toa Corp , ティーオーエー株式会社
Inventor： YOSHIKAWA SUSUMU
IPC: H03F3/08 , H04B10/11 , H04B10/114 , H04B10/40 , H04B10/50 , H04B10/54 , H04B10/60 , H04B10/67 , H04B10/69 , H04B10/04 , H04B10/06 , H04B10/10 , H04B10/105 , H04B10/14 , H04B10/22 , H04B10/26 , H04B10/28
Abstract: PROBLEM TO BE SOLVED: To provide an infrared ray receiver having sensitivity higher than conventional one and wide reception bandwidth. SOLUTION: A light receiving circuit 156 for receiving a plurality of channels sending infrared rays as a medium is provided with two photoelectric conversion circuits 220, 220a; and an adding circuit 246 adding the output signals. In addition, the respective photoelectric conversion circuits 220, 220a have tuning circuits 226, 226a, respectively. Respective turning frequencies f1, f2 are different from each other. The tuning frequencies f1 and f2 of the respective tuning circuits 226, 226a are set so that the output level of the adding circuit 246, in other words, a general tuning level obtained by the respective tuning circuits 226, 226a may be a specific level or more required for obtaining the good reception sensitivity in the frequency of the receiving channel. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供具有比常规的一个和更宽的接收带宽高的灵敏度的红外线接收器。 解决方案：用于接收发射红外线的多个通道作为介质的光接收电路156设置有两个光电转换电路220,220a; 和加法电路246相加输出信号。 另外，各个光电转换电路220,220a分别具有调谐电路226,226a。 各转向频率f1，f2彼此不同。 各个调谐电路226,226a的调谐频率f1和f2被设定为使得加法电路246的输出电平，换句话说，由各个调谐电路226,226a获得的一般调谐电平可以是特定电平或 更需要在接收频道的频率中获得良好的接收灵敏度。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2003219446A
公开(公告)日：2003-07-31
申请号：JP2002016577
申请日：2002-01-25
Applicant: TOA CORP
Inventor： MISAWA MASAHIRO , YOSHIKAWA SUSUMU
Abstract: PROBLEM TO BE SOLVED: To provide a guide system with which a user can always listen to a voice message from its beginning. SOLUTION: The guide system for providing a voice message of a subject to users is provided with transmitters 1 provided on appropriate points with respect to the subject and receivers 2 each carried by the users. Each of the transmitters is provided with a transmission recording section for storing voice messages, and transmitting section for reading the messages from the recording section to transmit the messages to the receivers 2. Each of the receivers 2 is provided with a receiving section for receiving voice messages transmitted from each of the transmitters 1, a reproducing section for taking out the messages, a reception recording section for storing the messages, and an output section for reading the messages from the reception recording section to reproduce the messages. The messages are read out from the transmission recording section at a speed higher than a speed at which messages are reproduced by the output section. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003092505A
公开(公告)日：2003-03-28
申请号：JP2001282248
申请日：2001-09-17
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
IPC: H01Q1/24
Abstract: PROBLEM TO BE SOLVED: To satisfactorily perform both long-distance communication and short- distance communication with simple configuration. SOLUTION: A radio communication means is built in a main body part 2. A whip antenna 4 is provided in this main body part 2. A whip antenna 6 is freely attachably and detachably provided outside the main body part 2. The whip antenna 6 is located proximately with the whip antenna 4 so as to be electrostatically coupled with the whip antenna 4 in the state of loading to the main body part 2.
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公开(公告)号：JP2002262270A
公开(公告)日：2002-09-13
申请号：JP2001058659
申请日：2001-03-02
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
Abstract: PROBLEM TO BE SOLVED: To provide a supervisory system where signals other than image pickup signals are transmitted by using existing coaxial cables. SOLUTION: Image pickup devices 4a-4d pick up an image of a supervisory area and generate a base band image pickup signal. A base station placed apart from the supervisory area has a monitor 12. The image pickup devices 4a-4d transmit the image pickup signal to the base station through coaxial cables 8a-8d. A master station transmitter-receiver 14 in the master station transmitter-receiver 14 and slave station transmitter-receiver sets 16a, 16b making communication with a wireless signal different from a frequency band of the base band image pickup signal is installed to the base station, the slave station transmitter-receiver sets 16a, 16b are placed around the supervisory area, antennas 18a-18d placed in the vicinity of the image pickup devices 4a-4d are connected to coaxial cables 8a-8d, and the master station transmitter-receiver 14 communicates with the slave station transmitter-receiver sets 16a, 16b by way of the coaxial cables 8a-8d and the antennas 18a-18d.
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公开(公告)号：JP2002261666A
公开(公告)日：2002-09-13
申请号：JP2001056597
申请日：2001-03-01
Applicant: TOA CORP
Inventor： YOSHIKAWA SUSUMU
Abstract: PROBLEM TO BE SOLVED: To receive a wireless signal from a desired transmitter with a simple operation. SOLUTION: An antenna switching unit 26 selects according to a selection signal from a control unit 28 an antenna from among a plurality of antennas which are located in different positions so as to respectively receive wireless signals from predetermined one of a plurality of fixed transmitters which are located in different positions transmitting wires signals. A synchronizing unit 29 synchronizes the reception signal of the selected antenna in accordance with the control signal from the control unit 28 for demodulation. A storage unit 46 coordinates with each fixed transmitter to store a plurality of data for transmission. Each data for transmission comprises an antenna required to receive a wireless signal from a corresponding fixed transmitter, and frequency of the wireless signal from the corresponding transmitter. The control unit 28 controls the antenna switching unit 26 and the synchronizing unit 29 based on the data for transmission read from the storage unit 28.
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公开(公告)号：JP2002260131A
公开(公告)日：2002-09-13
申请号：JP2001058658
申请日：2001-03-02
Applicant: TOA CORP
Inventor： YAMADA AKIHIRO , YOSHIKAWA SUSUMU
IPC: G08B13/10 , G08B13/183 , G08B13/22 , G08B25/04 , G08B25/10
Abstract: PROBLEM TO BE SOLVED: To provide a monitoring device capable of verifying that an apparatus operates properly, and surely reporting occurrence of an emergency. SOLUTION: A transmitter 2 always transmits a wave, and when an input signal is provided, it modulates the waves and transmits them. Corresponding to an operating signal from the operation of an operation switch 6, an alarm signal is provided as an input signal from an alarm signal generating section. A receiver 22 is located at a distance from the transmitter 2 and receives the wave from the transmitter 2. When the receiver 22 is not receiving the wave, a display 48 displays 'abnormal', and when the receiver 22 is receiving the wave, the display 48 displays 'normal'. When the receiver 22 is receiving the wave and demodulating the alarm signal, the display 48 has a displayed 'emergency' on it.
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