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1. 发明授权

US6147866A Electronic device 失效
标题翻译：电子设备
公开(公告)号：US6147866A
公开(公告)日：2000-11-14
申请号：US336292
申请日：1999-06-21
申请人： Yoshio Saito , Satoshi Urabe , Jiro Kikuchi , Nobuyuki Suzuki , Yoshikiyo Watanabe
发明人： Yoshio Saito , Satoshi Urabe , Jiro Kikuchi , Nobuyuki Suzuki , Yoshikiyo Watanabe
IPC分类号： H05K7/20
CPC分类号： H05K7/20509
摘要： According to the electronic device of the invention, the convex parts formed on the case is inserted into the engagement holes provided on the thermal conduction member, and the front ends of the convex parts are caulked to eliminate the plays. Further, the tongue-form pieces are formed on each of the two sides parallel to each other, the clasps are formed upright on the case, and the tongue-form pieces are hooked by the lower sides of the clasps. Further, the two sides where the tongue-form pieces of the thermal conduction member are formed are provided with slits that make it easy to deflect the tongue-form pieces, which facilitates the work to hook by slanting the upper sides of the clasps on the case, and further eliminates the plays.
摘要翻译：根据本发明的电子设备，将形成在壳体上的凸部插入到设置在导热部件上的接合孔中，并且对凸部的前端进行铆接以消除打击。此外，舌形片形成在彼此平行的两侧中的每一侧上，所述钩形件竖直地形成在所述壳体上，并且所述舌形片被所述扣子的下侧钩住。此外，形成有导热构件的舌状片的两侧设置有使得容易使舌片形成偏转的狭缝，这有助于通过将钩子的上侧倾斜在钩子上而钩住的工作情况，并进一步消除戏剧。

2. 发明授权

US06223023B1 Transmitter-receiver unit for portable telephone 失效
标题翻译：用于便携式电话的发射机 - 接收机单元
公开(公告)号：US06223023B1
公开(公告)日：2001-04-24
申请号：US09334882
申请日：1999-06-17
申请人： Jiro Kikuchi , Yoshio Saito , Satoshi Urabe
发明人： Jiro Kikuchi , Yoshio Saito , Satoshi Urabe
IPC分类号： H04B138
CPC分类号： H04B1/3833 , H01Q1/243 , H01Q1/244
摘要： According to the present invention there is provided a transmitter-receiver unit for a portable telephone, comprising a transmission circuit block, a reception circuit block, an antenna terminal member with an antenna connected thereto for transmitting a transmission signal outputted from the transmission circuit block and for receiving a reception signal to be inputted to the reception circuit block, an antenna duplexer connected to the antenna terminal member, a printed wiring board having connectors and wiring patterns, the connectors having terminals connected to the transmission circuit block and the reception circuit block and also connected to the wiring patterns, and a frame for holding the printed wiring board, wherein the antenna terminal member is disposed at a corner position of one side of the printed wiring board, and the connectors are formed so that they each can be disposed at any of opposed positions on both sides of the printed wiring board.
摘要翻译：根据本发明，提供了一种用于便携式电话的发射机 - 接收机单元，包括发射电路块，接收电路块，连接有天线的天线端子构件，用于发送从发射电路块输出的发射信号，以及用于接收要输入到接收电路块的接收信号，连接到天线端子构件的天线双工器，具有连接器和布线图案的印刷线路板，连接器具有连接到发送电路块和接收电路块的端子，以及还连接到布线图案，以及用于保持印刷线路板的框架，其中天线端子构件设置在印刷线路板的一侧的拐角位置，并且连接器形成为使得它们各自可以布置在在印刷电路板的两侧的任何相对的位置。

3. 发明授权

US06288910B1 Transmit-receive unit 失效
标题翻译：发送接收单元
公开(公告)号：US06288910B1
公开(公告)日：2001-09-11
申请号：US09522568
申请日：2000-03-10
申请人： Yoshio Saito , Satoshi Urabe
发明人： Yoshio Saito , Satoshi Urabe
IPC分类号： H05K714
CPC分类号： H05K9/0024
摘要： Since the transmit-receive unit of the prior art comprises the housing 21 made from a metal, the weight of the housing is large and the obtained transmit-receive unit for use in a portable telephone which is required to be light in weight becomes heavy. A transmit-receive unit comprises a housing which is made from a synthetic resin and has a conductive surface layer. Therefore, the housing is lighter in weight than a housing made from a metal of the prior art and makes it possible to provide a lightweight transmit-receive unit suitable for use in a portable telephone.
摘要翻译：由于现有技术的发送接收单元包括由金属制成的壳体21，所以壳体的重量大，并且所获得的用于需要重量轻的便携式电话的发送接收单元变重。发送接收单元包括由合成树脂制成并具有导电表面层的外壳。因此，壳体的重量比由现有技术的金属制成的壳体重，并且使得可以提供适用于便携式电话的轻量级的发射 - 接收单元。

4. 发明授权

US5900781A Multistage variable gain amplifier circuit 失效
标题翻译：多级可变增益放大器电路
公开(公告)号：US5900781A
公开(公告)日：1999-05-04
申请号：US814250
申请日：1997-03-11
申请人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
发明人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
IPC分类号： H03G3/30 , H03F3/19 , H03F3/45 , H03F3/62 , H03G1/00 , H03G3/10
CPC分类号： H03F3/45089 , H03F3/62 , H03G1/0017 , H03G1/0023 , H03F2200/294 , H03F2200/372
摘要： A multistage amplifier circuit comprises a current constant mode variable amplifying circuit for amplifying an input signal and current variable mode variable amplifying circuits and for further amplifying the signal amplified by the first variable amplifying circuit. An AGC voltage VAGC is commonly applied between the bases and emitters of an amplification degree control transistor of the current constant mode variable amplifying circuit and amplification degree control transistors of the current variable mode amplifying circuits. Collector currents of the transistors change exponentially with respect to the linearly-varied AGC voltage VAGC. Further, currents each proportional to the collector current of the transistor flow in the transistors. Thus, the gain PG �dB! of the current constant mode variable amplifying circuit changes linearly with the AGC voltage VAGC.
摘要翻译：多级放大器电路包括用于放大输入信号的电流恒定模式可变放大电路和电流可变模式可变放大电路，并用于进一步放大由第一可变放大电路放大的信号。 AGC电压VAGC通常被施加在电流恒定模式可变放大电路的放大度控制晶体管和电流可变模式放大电路的放大度控制晶体管的基极和发射极之间。晶体管的集电极电流相对于线性变化的AGC电压VAGC呈指数变化。此外，与晶体管的集电极电流成比例的电流在晶体管中流动。因此，电流恒定模式可变放大电路的增益PG [dB]随着AGC电压VAGC而线性变化。

5. 发明授权

US5926749A Amplifier circuit having common AGC to IF and RF amplifiers for use in a transmitter 失效
标题翻译：放大器电路具有用于发射机的公共AGC到IF和RF放大器
公开(公告)号：US5926749A
公开(公告)日：1999-07-20
申请号：US818403
申请日：1997-03-12
申请人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
发明人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
IPC分类号： H03G3/20 , H03F1/32 , H03G3/10 , H03G3/30 , H04B1/04 , H04B1/06
CPC分类号： H03G3/3042 , H04B1/04
摘要： An amplifier circuit comprises current-variable mode variable amplifying circuits and for amplifying an IF signal and a current-constant mode variable amplifying circuit for amplifying an RF signal. I and Q signals are applied to the IF-stage variable amplifying circuits and corresponding to two stages through a QPSK modulating circuit and amplified based on an AGC voltage VAGC applied thereto. The IF signal is converted into the RF signal by a mixer, which in turn is applied to the RF-stage variable amplifying circuit where it is amplified based on the AGC voltage VAGC common to the IF stages. The linearly-varied AGC voltage VAGC is converted into an exponentially-varied control current by transistors. Thus, a gain PG �dB! of each of variable amplifying circuits is controlled linearly with the AGC voltage VAGC.
摘要翻译：放大器电路包括电流可变模式可变放大电路和放大IF信号以及用于放大RF信号的电流常数模式可变放大电路。 I和Q信号通过QPSK调制电路施加到IF级可变放大电路并对应于两级，并基于施加到其上的AGC电压VAGC进行放大。 IF信号通过混频器转换成RF信号，该混频器又被施加到RF级可变放大电路，在RF级可变放大电路中基于IF级公共的AGC电压VAGC进行放大。线性变化的AGC电压VAGC被晶体管转换成指数变化的控制电流。因此，每个可变放大电路的增益PG [dB]由AGC电压VAGC线性地控制。

6. 发明授权

US5900782A AGC voltage correction circuit 失效
标题翻译： AGC电压校正电路
公开(公告)号：US5900782A
公开(公告)日：1999-05-04
申请号：US843498
申请日：1997-04-16
申请人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
发明人： Sadao Igarashi , Kazuharu Aoki , Satoshi Urabe
IPC分类号： H03G3/20 , H03F1/30 , H03F3/45 , H03G1/04 , H03G3/02 , H03G3/10 , H03G3/30
CPC分类号： H03F1/302 , H03G1/04 , H03F2200/372
摘要： An object of the present invention is to provide an AGC voltage correction circuit unaffected by a change in temperature.Since base-emitter voltages V.sub.BE of transistors Q9 and Q10 constituting a first reference current source 7 have temperature dependency, the variations of the gains of amplification transistors Q17 and Q18 dependent on temperature are diminished. Since transistors Q1 and Q2 constituting a second reference current source 2 have temperature dependency, a gain slope concerning amplification transistors Q17 and Q18 relative to temperature is corrected linearly.
摘要翻译：本发明的目的是提供不受温度变化影响的AGC电压校正电路。由于构成第一参考电流源7的晶体管Q9和Q10的基极 - 发射极电压VBE具有温度依赖性，所以依赖于温度的放大晶体管Q17和Q18的增益的变化减小。由于构成第二参考电流源2的晶体管Q1和Q2具有温度依赖性，所以关于放大晶体管Q17和Q18相对于温度的增益斜率被线性校正。

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