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1. 发明授权

US5430796A Auxiliary attenuator arrangement for use in voice-switched speakerphone and method of selectively inserting communication loss in speakerphone paths 失效
标题翻译：用于语音切换扬声器电话的辅助衰减器装置和在扬声器电话路径中选择性地插入通信损失的方法
公开(公告)号：US5430796A
公开(公告)日：1995-07-04
申请号：US793120
申请日：1991-11-18
申请人： Motoyoshi Komoda , Ikio Yoshida
发明人： Motoyoshi Komoda , Ikio Yoshida
IPC分类号： H04M1/00 , H04M1/60 , H04M9/10 , H04M11/00
CPC分类号： H04M9/10
摘要： Speech signals appearing at the receiving and transmitting paths of a speakerphone which operates under voice switching, are received at a control circuit. The control circuit issues a control signal which assumes a first level in the event that a signal at the receiving path exceeds a signal at the transmitting path and which assumes a second level if the signal at the receiving path falls below the signal at the transmitting path. Communication loss is inserted in both the receiving and transmitting paths in response to the first level of the control signal, and is eliminated therefrom in response to the second level of the control signal.
摘要翻译：在控制电路处接收出现在语音切换下工作的扬声器的接收和发送路径上的语音信号。如果接收路径上的信号超过发送路径上的信号，并且如果接收路径处的信号低于发送路径的信号，则控制电路发出控制信号，该控制信号假定为第一电平。响应于控制信号的第一电平，在接收和发送路径中插入通信损失，并且响应于控制信号的第二电平而将其从其中消除。

2. 发明授权

US5054061A Hands-free telephone 失效
标题翻译：无电话电话
公开(公告)号：US5054061A
公开(公告)日：1991-10-01
申请号：US417617
申请日：1989-10-05
申请人： Ikio Yoshida
发明人： Ikio Yoshida
IPC分类号： H04M1/60 , H04M9/08 , H04M9/10 , H04Q7/20 , H04Q7/38
CPC分类号： H04M9/08 , H04M9/10
摘要： In order to perform voice-switched telephoning, a hands-free telephone includes a speaker, a microphone, a receive variable attenuator (R-ATT), a transmit variable attenuator (T-ATT), a receive signal detector, a transmit signal detector and an attenuation control circuit. The telephone also includes an auxiliary control circuit which prevents the output of the transmit signal detector from reaching the attenuation control circuit during a transient period between a call origination and the beginning of conversation. During the transient period, only the speaker is enabled to output a ringback tone therethrough. When the output level of the transmit signal detector exceeds a predetermined level, the auxiliary control circuit passes the output of the transmit signal detector to the attenuation control circuit to start the voice-switched telephoning. Once the auxiliary control circuit passes the output of the transmit signal detector, it holds this state until the conversation finishes.

3. 发明授权

US4872003A Serial interface system flexibly applicable to a one-to-plurality connection 失效
标题翻译：串行接口系统灵活适用于一对多连接
公开(公告)号：US4872003A
公开(公告)日：1989-10-03
申请号：US204945
申请日：1988-06-01
申请人： Ikio Yoshida
发明人： Ikio Yoshida
IPC分类号： G06F13/42
CPC分类号： G06F13/4291
摘要： In a serial interface system wherein a master unit (26, 27) selects one or more of slave units (26, 27) as a destination by an identification number assigned to each slave unit and transmits a data signal to the destination in synchronism with a clock signal, a control path is added to a serial interface. When one of the slave units acts as a source either in transmitting data to the master unit or in transferring data to one or more of other slave units selected as a destination, the source activates the control path to activate, in turn, the master unit. When activated, the master unit sends a clock signal to the interface to make the source transmit or transfer the data in synchronism with the clock signal. Alternatively, the control path is dispensed with. In this event, the master unit is activated either by a command signal produced by the master unit or by a like command signal set forth from a source to the interface in response to an interrogation from the master unit. Preferably, signals except for the clock signal are sent from the master unit or from the source with an identification code included in each frame of the signals to indicate each of the slave units by the identification number that is concerned with the signals.
摘要翻译：在串行接口系统中，其中主单元（26,27）通过分配给每个从单元的标识号选择一个或多个从单元（26,27）作为目的地，并将数据信号与时钟信号，控制路径被添加到串行接口。当其中一个从单元用作向主机发送数据或将数据传送到选择为目的地的一个或多个其他从单元的源时，源激活控制路径，从而激活主单元。激活时，主机向接口发送时钟信号，使源与时钟信号同步发送或传输数据。或者，省略控制路径。在这种情况下，响应于来自主单元的询问，主单元或者由主单元产生的命令信号或从源向接口设置的类似命令信号激活。优选地，除了时钟信号之外的信号是从主单元或从信号源以包含在信号的每一帧中的识别码发送的，以通过与信号有关的识别号表示每个从单元。

4. 发明授权

US5535436A Portable transceiver and ESN transfer system therefor 失效
标题翻译：便携式收发器和ESN传输系统
公开(公告)号：US5535436A
公开(公告)日：1996-07-09
申请号：US387384
申请日：1995-02-13
申请人： Ikio Yoshida , Masahiro Ishigami
发明人： Ikio Yoshida , Masahiro Ishigami
IPC分类号： H04M1/727 , H04W8/20 , H04W8/24 , H04W24/00 , H04W92/18 , H04B1/40
CPC分类号： H04W8/205 , H04M1/727 , H04W24/00 , H04W8/24 , H04W92/18
摘要： A portable transceiver and an ESN transfer system for a car telephone system. The ESN and the MSN, which are manufacturer-controlled numbers, are stored in an EEPROM mounted on the panel of the portable transceiver. When the panel on which the EEPROM is mounted is to be replaced, only the ESN is transferred to the EEPROM of the new panel. Upon completion of the ESN transfer, the ESN in the EEPROM of the replaced panel is rewritten to data, which would make its specific part, such as the manufacturer's ID number, to be judged "incorrect". No ESN whose specific part is "incorrect" can be transferred. The ESN transfer unit, connected to a connector provided in the casing of the portable transceiver, performs said ESN transfer.
摘要翻译：便携式收发器和用于汽车电话系统的ESN传送系统。作为制造商控制的编号的ESN和MSN存储在安装在便携式收发器的面板上的EEPROM中。当安装EEPROM的面板要更换时，只有ESN被传送到新面板的EEPROM。在ESN传输完成后，更换的面板的EEPROM中的ESN将重写为数据，这将使其特定部分（如制造商ID号）被判断为“不正确”。不能转移具体部分为“不正确”的ESN。连接到设置在便携式收发器的壳体中的连接器的ESN传送单元执行所述ESN传送。

5. 发明授权

US5257400A Cellular mobile telephone system 失效
标题翻译：蜂窝移动电话系统
公开(公告)号：US5257400A
公开(公告)日：1993-10-26
申请号：US647792
申请日：1991-01-30
申请人： Ikio Yoshida
发明人： Ikio Yoshida
IPC分类号： H04W48/16 , H04W76/02 , H04Q7/02 , H04Q9/02 , H04B7/00
CPC分类号： H04W48/16 , H04W76/02
摘要： In a cellular mobile telephone system serving a plurality of cells, each of the cells being assigned a unique standby channel, the mobile station is assigned several standby channels and a system identifier identifying the system. The standby channels are scanned and one of the scanned channels having a highest signal level is selected. If there is a match between the system identifier of the selected standby channel and the system identifier of the mobile station, the mobile station is ready to originate or receive a call. If there is no originating or incoming call, the identifier of a call setup channel specified by the standby channel is stored into a different location of a memory. Otherwise, the identifiers stored in the memory are scanned, and one of the scanned call setup channels is selected.

6. 发明授权

US4982425A Hands-free telephone 失效
标题翻译：免提电话
公开(公告)号：US4982425A
公开(公告)日：1991-01-01
申请号：US313209
申请日：1989-02-21
申请人： Ikio Yoshida
发明人： Ikio Yoshida
IPC分类号： H04M1/60 , H04M9/08 , H04M9/10 , H04Q7/20 , H04Q7/38
CPC分类号： H04M9/08 , H04M9/10
摘要： In order to perform voice-switched telephoning, a hands-free telephone includes a speaker, a microphone, a receive variable attenuator (R-ATT), a transmit variable attenuator (T-ATT), a receive signal detector, a transmit signal detector and an attenuation control circuit. The telephone also includes an auxiliary control circuit which prevents the output of the transmit signal detector from reaching the attenuation control circuit during a transient period between a call origination and the beginning of a conversation. During the transient period, only the speaker is enabled to output a ringback tone therethrough. When the output level of the transmit signal detector exceeds a predetermined level, the auxiliary control circuit passes the output of the transmit signal detector to the attenuation control circuit to start the voice-switched telephoning. Once the auxiliary control circuit passes the output of the transmit signal detector, it holds this state until the conversation finishes.

7. 发明授权

US4339727A Waveform converting circuit 失效
标题翻译：波形转换电路
公开(公告)号：US4339727A
公开(公告)日：1982-07-13
申请号：US18396
申请日：1979-03-07
申请人： Kouzou Kage , Ikio Yoshida
发明人： Kouzou Kage , Ikio Yoshida
IPC分类号： H03K5/003 , H03K5/08 , H04L25/06 , H03K9/08
CPC分类号： H04L25/061 , H03K5/003 , H03K5/086
摘要： Waveform converting circuits are disclosed which eliminate errors in data reproduction due to the transitional response of low or high pass filters even if the data signal contains a D.C. component. The converting circuits have a comparator with first and second input terminals. The comparator produces a "1" or "0" output depending on the comparison of the voltages of input signals fed to these first and second input terminals. In one type of converting circuit, a low pass filter is connected between the signal input terminal and the second input terminal of the comparator, while the signal input terminal is directly connected to the first input terminal of the comparator. A feedback circuit including a low pass filter is connected between the output and the second input terminals of the comparator. In another type of converting circuit, a high pass filter is connected between the signal input terminal and the first input terminal of the comparator, and a limiter is connected to the output of the high pass filter. A feedback circuit is provided between the output and either the first or second input terminals of the comparator.
摘要翻译：公开了波形转换电路，其消除了由于低通滤波器或高通滤波器的过渡响应导致的数据再现误差，即使数据信号包含直流分量。转换电路具有带有第一和第二输入端的比较器。比较器根据馈送到这些第一和第二输入端的输入信号的电压的比较产生“1”或“0”输出。在一种转换电路中，低通滤波器连接在比较器的信号输入端和第二输入端之间，而信号输入端直接连接到比较器的第一输入端。包括低通滤波器的反馈电路连接在比较器的输出端和第二输入端之间。在另一种类型的转换电路中，高通滤波器连接在信号输入端和比较器的第一输入端之间，限幅器连接到高通滤波器的输出。在比较器的输出和第一或第二输入端之间提供反馈电路。

8. 发明授权

US4288751A Wave translating circuit 失效
标题翻译：波转换电路
公开(公告)号：US4288751A
公开(公告)日：1981-09-08
申请号：US22648
申请日：1979-03-21
申请人： Ikio Yoshida , Kouzou Kage , Kazuhiro Ikeda , Yasuo Sato
发明人： Ikio Yoshida , Kouzou Kage , Kazuhiro Ikeda , Yasuo Sato
IPC分类号： H03K5/003 , H03K5/007 , H03K5/08 , H04N5/16
CPC分类号： H03K5/007 , H03K5/003
摘要： A wave translating circuit includes a capacitor supplied with an input signal, a first resistor connected between a first potential point and the output of the capacitor, a second resistor connected between a second potential point and the output of the capacitor, and a limiter connected to the output of the capacitor.
摘要翻译：波动平移电路包括提供有输入信号的电容器，连接在第一电势点和电容器的输出端之间的第一电阻器，连接在第二电位点和电容器的输出端之间的第二电阻器，以及连接到电容的输出。

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