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1. 发明专利

JPS6115429A Radio selective call communication system 失效
标题翻译：无线电选择性呼叫通信系统
公开(公告)号：JPS6115429A
公开(公告)日：1986-01-23
申请号：JP13410084
申请日：1984-06-30
申请人： Nec Corp
发明人： NISHIMURA IZUMI , UMETSU SHINJIROU
IPC分类号： H04W84/02 , H04K1/00
CPC分类号： H04W99/00 , H04K1/00
摘要： PURPOSE:To control the information desired not to be known by an unpermitted receiver especially at a base station by adding a scramble circuit and its control section to the base station, and a descramble circuit to a receiver. CONSTITUTION:A signal transmitted from a telephone set 1 is converted into a code by a control section 3 through an exchange 2, modulated by a modulation section 4, and transmitted via a transmission section 5 and an antenna 6. The control section 3 applies scrambling to its code. The signal transmitted from the base station is demodulated by a demodulation section 9 via a reception section 8 from an antenna 7, one is inputted to a decoder 12 via a gate 11, and the other is inputted to the decoder 12 via the gate 11 from the descramble circuit 10. The descramble circuit 10 acts like restoring the scrambled code by the control section 3 of the base station. When a signal C is inputted to the decoder 12, it is compared with a call number stored in the ROM13 in advance and when they are coincident, a speaker 17 is energized and an information code succeeding to the call number is displayed on a display device 14.
摘要翻译：目的：通过向基站添加扰频电路及其控制部分，以及对接收机的解扰电路，来控制未被接收的接收机尤其是在基站处不被所知的信息。构成：由电话机1发送的信号由控制部3通过调制部4调制的交换机2转换为编码，并通过发送部5和天线6发送。控制部3将加扰到其代码。从基站发送的信号由解调部9经由接收部8从天线7被解调，一个经由门11输入到解码器12，另一个经由门11经由门11被输入到解码器12 解扰电路10.解扰电路10的作用就像通过基站的控制部分3恢复加扰码。当将信号C输入到解码器12时，将其与存储在ROM13中的呼叫号码进行比较，当它们一致时，扬声器17被通电，并且在呼叫号码之后的信息代码被显示在显示装置上 14。

2. 发明专利

JPS59112732A Selective calling receiver 失效
标题翻译：选择性呼叫接收器
公开(公告)号：JPS59112732A
公开(公告)日：1984-06-29
申请号：JP22330982
申请日：1982-12-20
申请人： Nec Corp
发明人： UMETSU SHINJIROU
IPC分类号： H02J1/00 , H04W84/02 , H04W88/02
CPC分类号： H04W84/00 , Y02D70/00
摘要： PURPOSE:To make a user informed of the cause of a power source voltage drop by performing annunciating operation different from normal selective calling annunciation when power consumption decreases and a source voltage drops down to a lower voltage. CONSTITUTION:A low-voltage detection part 11 generates a stable reference voltage for a battery 2 and outputs a low-voltage detection signal to a ringing generation part 8 when the battery voltage drops below the reference voltage, i.e. enters a state LV. The generation part 8 once receiving the detection signal informs the user of the low-voltage state by a signal different from a call signal. In this case, if the source voltage enters the state LV owing to a large current, the volume and frequency of a ring-back tone or ringing for the start of receiver operation right after a switch 1 is turned on and the way of disconnection, etc., are made different from normal ones to let the user know the state LV. If the source voltage is in the low-voltage state even when a large current is not consumed, complete deterioration of the power source is reported by different ringing.
摘要翻译：目的：通过在功耗降低并且电源电压下降到较低电压时执行与正常选择呼叫通知不同的通知操作，向用户通知电源电压降的原因。构成：当电池电压下降到参考电压以下，即进入状态LV时，低电压检测部分11产生电池2的稳定的参考电压，并将低电压检测信号输出到振铃发生部分8。一旦接收到检测信号，生成部分8通过与呼叫信号不同的信号通知用户低电压状态。在这种情况下，如果源电压由于大电流而进入状态LV，则在开关1接通和断开方式之后立即开始接收器操作的回铃音或振铃的音量和频率，与正常情况不同，让用户知道状态LV。如果源电压处于低电压状态，即使没有消耗大电流，则通过不同的振铃报告电源的完全劣化。

3. 发明专利

JPS59158606A Radio receiver for fm signal 失效
标题翻译：无线电收音机FM信号
公开(公告)号：JPS59158606A
公开(公告)日：1984-09-08
申请号：JP3331783
申请日：1983-02-28
申请人： Nec Corp
发明人： YOSHIZAWA SHIGEO , UMETSU SHINJIROU
IPC分类号： H04B1/06 , H03D3/00 , H03D3/18
CPC分类号： H03D3/007
摘要： PURPOSE:To attain the titled receiver suitable for miniaturization and circuit integration by using a local oscillator oscillated at a frequency the same as a line frequency so as to detect the in-phase and orthogonal components of a receiving signal thereby applying delay detection to the signal components. CONSTITUTION:A signal received on an antenna 1 is branched and inputted to phase detectors 2, 3. On the other hand, one output of the local oscillator 4 oscillated at the same frequency as the line frequency is inputted to the phase detector 3, where the in-phase component as that of the oscillated output from the receiving signal is detected. The other output of the local oscillator 4 is inputted to the phase detector 2 via a 90 deg. phase shifter 5, where the orthogonal component is detected. An output of LPFs 6, 7 is fed respectively to ALC amplifiers 8 and 9, and the amplifiers 8 and 9 make respective output voltages A, B constant independent of an input electric field. The output B of the amplifier 9 is delayed by a delay circuit 10 and the output of the delay circuit 10 is multiplied with the output A by a multiplication circuit 11. Further, an output D of the multiplication circuit 11 is outputted to an output terminal 13 via an LPF12.
摘要翻译：目的：通过使用以与线路频率相同的频率振荡的本地振荡器来获得适合于小型化和电路集成的标准接收机，以便检测接收信号的同相和正交分量，从而对信号进行延迟检测组件。构成：在天线1上接收的信号被分支并输入到相位检测器2,3中。另一方面，本地振荡器4的一个输出以与线频率被输入到相位检测器3相同的频率振荡，其中检测与接收信号的振荡输出的同相分量。本地振荡器4的另一输出经90度输入到相位检测器2。移相器5，其中检测到正交分量。 LPF6,7的输出分别馈送到ALC放大器8和9，并且放大器8和9使得相应的输出电压A，B恒定，与输入电场无关。放大器9的输出B被延迟电路10延迟，延迟电路10的输出由乘法电路11与输出A相乘。此外，乘法电路11的输出D输出到输出端 13通过LPF12。

4. 发明专利

JPS5734223A Power supply circuit 失效
标题翻译：电源电路
公开(公告)号：JPS5734223A
公开(公告)日：1982-02-24
申请号：JP10801280
申请日：1980-08-05
申请人： Nec Corp
发明人： UMETSU SHINJIROU
IPC分类号： H02J1/00 , G06F1/32 , H04B7/26
CPC分类号： G06F1/32
摘要： PURPOSE:To economize power consumption in a power supply circuit equipped with a DC-DC converter by starting the circuit appropriately when power supply is put to work. CONSTITUTION:When power supply is put to work, data are inputted to a DC-DC converter for a stated period required for the starting of a processor 6 and, after securing the voltage to enable the operation of the processor 6, the processor 6 is started appropriately, so that output is sent from the processor 6 to an OR logical element 5 to control so as to close an intermittent switch 4 and operate the DC-DC converter intermittently, economizing the power consumption.
摘要翻译：目的：通过在电源投入运行时适当启动电路，节省配备有DC-DC转换器的电源电路的功耗。构成：当电源工作时，将数据输入到DC-DC转换器达到启动处理器6所需的规定时间，并且在确保电压以使得处理器6的操作成为可能之后，处理器6是从而将输出从处理器6发送到OR逻辑元件5以进行控制，以便闭合间歇开关4并间歇地操作DC-DC转换器，从而节省功耗。

5. 发明专利

JPS59103435A Individual selective calling receiver with display 失效
标题翻译：具有显示功能的个性选择性呼叫接收器
公开(公告)号：JPS59103435A
公开(公告)日：1984-06-14
申请号：JP21367582
申请日：1982-12-06
申请人： Nec Corp
发明人： UMETSU SHINJIROU
IPC分类号： H04Q7/06 , G08B3/10 , G08B29/12 , G11C29/00 , G11C29/56 , H04B7/26 , H04Q7/08 , H04Q7/12 , H04Q7/14
CPC分类号： H04W24/06 , G08B3/1016 , G08B29/12 , H04W88/022
摘要： PURPOSE:To confirm simply all the content stored in an ROM without removing the ROM from a receiver. CONSTITUTION:The receiver is in the stand-by state of a synchronizing signal as the initial state, and when the synchronizing signal is received, the mode is the stand-by state of the own call number. When a receiving controller 3 receives the own call number, a display controller 4 is started in the specified timing. The display controller 4 receives display information succeeding to the call number and discriminates whether the display information is a test code (P-ROM readout start information) or not, and when the test code is received, the mode is discriminated as the test mode, a power supply is applied to the circuit relating to the display, the P-ROM readout program in the display controller 4 is executed, and the content in the P-ROM8 is all outputted automatically to an LCD6 via an LCD controller/driver 5. When the end code written in the final part of the data of the P-ROM is read out during the execution of program, this program is extracted and the mode returns to the normal receiving operation.
摘要翻译：目的：简单地确认存储在ROM中的所有内容，而无需从接收器中取出ROM。构成：接收机处于作为初始状态的同步信号的待机状态，并且当接收到同步信号时，该模式是自己的呼叫号码的待机状态。当接收控制器3接收到自己的呼叫号码时，在指定的定时启动显示控制器4。显示控制器4接收与呼叫号码相关的显示信息，并且判断显示信息是否为测试码（P-ROM读出开始信息），并且当接收到测试码时，将该模式区分为测试模式，对与显示有关的电路施加电源，执行显示控制器4中的P-ROM读出程序，并且通过LCD控制器/驱动器5将P-ROM8中的内容全部自动输出到LCD6。当在程序执行期间读出写入P-ROM的数据的最后部分的结束代码时，该程序被提取，并且该模式返回到正常的接收操作。

6. 发明专利

JPS5941934A Selective call receiver 失效
标题翻译：选择性呼叫接收器
公开(公告)号：JPS5941934A
公开(公告)日：1984-03-08
申请号：JP15297682
申请日：1982-09-01
申请人： Nec Corp
发明人： UMETSU SHINJIROU , ODA TAKASHI
IPC分类号： H04L25/03 , H04W4/00 , H04W52/02 , H04W84/02 , H04W88/02
CPC分类号： H04W84/00 , Y02D70/00
摘要： PURPOSE:To reduce the power consumption and improve the reliability of demodulation, by generating quickly a reference voltage from an integrating circuit of a waveform shaping part to shorten the power supply time of a receiver and switching the time constant of the integrating circuit to an optimum value. CONSTITUTION:The selective call receiver is constituted with an antenna 1, a radio part 2, a waveform shaping part 3, a decoder part 4, switches 61 and 62, a DC power source 7, etc. The waveform shaping part 3 is provided with an LPF 10, a comparator 14, and a time constant switching circuit consisting of resistances 11, 12, and 19 and switches 17 and 18, and a capacitor 13 is connected to the side of a reference voltage (q) of the comparator 14, and the capacitor 13 is grounded by a switch 16. Opening and closing of these switches 16-18 are controlled by the control signal from the decoder part 4. The receiver is so constituted that the reference voltage is generated quickly by the integrating circuit of the waveform shaping part 3 to reduce the power consumption of the receiver, and the time constant of the integrating circuit is switched to an optimum value to improve the reliability of demodulation.
摘要翻译：目的：为了降低功耗并提高解调的可靠性，通过快速从波形整形部分的积分电路产生参考电压，缩短接收机的供电时间，并将积分电路的时间常数切换到最佳状态值。构成：选呼接收机由天线1，无线部2，波形整形部3，解码部4，开关61,62，直流电源7等构成。波形整形部3具备 LPF10，比较器14以及由电阻11,12和19以及开关17和18组成的时间常数切换电路，电容器13连接到比较器14的参考电压（q）侧，并且电容器13由开关16接地。这些开关16-18的打开和关闭由来自解码器部分4的控制信号控制。接收器被构造成使得参考电压被快速地由波形整形部分3以减少接收机的功耗，并且将积分电路的时间常数切换到最佳值以提高解调的可靠性。

7. 发明专利

JPS57124946A Pulse detection circuit 失效
标题翻译：脉冲检测电路
公开(公告)号：JPS57124946A
公开(公告)日：1982-08-04
申请号：JP999181
申请日：1981-01-26
申请人： Nec Corp
发明人： ICHIKAWA YOSHIAKI , UMETSU SHINJIROU
IPC分类号： H03K5/08 , H04L25/06 , H04W52/02 , H04W88/02
CPC分类号： H03K5/08 , H04L25/062 , H04W52/0274 , H04W88/022 , Y02D70/00
摘要： PURPOSE: To reduce the effect of current level variance and to decrease the power consumption remakably, by integrating an input signal, detecting the input signal through this integrated output as a reference voltage, and providing a means for protecting the integrated output when the power supply is interrupted.
CONSTITUTION: A power switch 11 turns on at time t
1 and a voltage of control inputs 1, 2 is applied from, e.g., decoder 105 to close switch circuits 7, 12. Thus, after an integration circuit of a short time constant is formed and rapidly charged, a control input 1 is made to a low level at time t
2 , the switch circuit 7 is opened to form an integration circuit of a long time constant, stable reference voltage is applied to a comparator 2, and input signal 1 or 0 is detected. Next, when the circuit 11 turns off at time t
3 , the voltage of the control input 2 is also at low level, the switch 12 is opened and the reference voltage is kept constant by cutting off the discharge path of a capacitor 6. When the power supply switch 11 turns on at time t
4 , although the switch 12 is closed, since the reference voltage is charged, the input signal 1 or 0 can be detected immediately without the need for charging time.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了减少电流电平变化的影响，并通过积分输入信号，通过该集成输出检测输入信号作为参考电压，并提供一种在电源供应时保护集成输出的装置被中断构成：电源开关11在时间t1处接通，并且例如解码器105施加控制输入1,2的电压以闭合开关电路7,12。因此，在形成短时间常数的积分电路之后，快速充电时，在时间t2使控制输入1变为低电平，开关电路7断开以形成长时间常数的积分电路，稳定的参考电压施加到比较器2，输入信号1或0 被检测到。接下来，当电路11在时间t3断开时，控制输入2的电压也处于低电平，通过切断电容器6的放电路径，开关12断开，基准电压保持恒定。当电源开关11在时间t4接通，尽管开关12闭合，由于参考电压被充电，所以可以立即检测输入信号1或0而不需要充电时间。

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