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1. 发明专利

GB2154347A PAGING COMMUNICATION SYSTEM 未知
公开(公告)号：GB2154347A
公开(公告)日：1985-09-04
申请号：GB8503433
申请日：1985-02-11
申请人： NEC CORP
发明人： NISHIMURA IZUMI , NAGATA KOICHI
IPC分类号： G08B3/10 , G08B5/22 , H04B5/04 , H04M3/42 , H04W8/24 , H04W88/02
摘要： A paging communication system is configured so that a plurality of receivers are called by group in response to a paging signal transmitted from a base station. The base station is provided with first circuitry comprising a plurality of timers for counting the number of transmissions to each receiver, and second circuitry operative to transmit a first kind of data indicating that the information code assigned to each of the particular receivers is masked and a second kind of data for restarting the ordinary receiving process with respect to the masked information code. Each receiver is provided with a decoder circuit operative in response to the first kind of data to inhibit the ordinary receiving process with respect to the masked code and operative in response to the second kind of data to restart the ordinary receiving process. Thus, the communication system will inhibit the information supply only to receivers which are not current in their contract payments and restart the information supply after payment of the contract fee. Further, this system can determine the appropriate charges based upon the number of calls to each individual calling number as counted by the first circuitry provided in the base station.

2. 发明专利

HK12693A PAGING COMMUNICATION SYSTEM 未知
公开(公告)号：HK12693A
公开(公告)日：1993-02-26
申请号：HK12693
申请日：1993-02-18
申请人： NEC CORP
发明人： NISHIMURA IZUMI , NAGATA KOICHI
IPC分类号： G08B3/10 , G08B5/22 , H04B5/04 , H04M3/42 , H04W8/24 , H04W88/02
摘要： A paging communication system is configured so that a plurality of receivers are called by group in response to a paging signal transmitted from a base station. The base station is provided with first circuitry comprising a plurality of timers for counting the number of transmissions to each receiver, and second circuitry operative to transmit a first kind of data indicating that the information code assigned to each of the particular receivers is masked and a second kind of data for restarting the ordinary receiving process with respect to the masked information code. Each receiver is provided with a decoder circuit operative in response to the first kind of data to inhibit the ordinary receiving process with respect to the masked code and operative in response to the second kind of data to restart the ordinary receiving process. Thus, the communication system will inhibit the information supply only to receivers which are not current in their contract payments and restart the information supply after payment of the contract fee. Further, this system can determine the appropriate charges based upon the number of calls to each individual calling number as counted by the first circuitry provided in the base station.

3. 发明专利

CA1227835A PAGING COMMUNICATION SYSTEM 未知
公开(公告)号：CA1227835A
公开(公告)日：1987-10-06
申请号：CA473573
申请日：1985-02-05
申请人： NEC CORP
发明人： NISHIMURA IZUMI , NAGATA KOICHI
IPC分类号： G08B3/10 , G08B5/22 , H04B5/04 , H04M3/42 , H04W8/24 , H04W88/02 , H04B7/26
摘要： A paging communication system is configured so that a plurality of receivers are called in group in response to a paging signal transmitted from a base station. The base station is provided with first circuitry comprising a plurality of timers for counting the number of transmission to each receiver, and second circuitry operative to transmit first data indicating that an information code assigned to each of particular ones of the receivers is masked and second data for restarting an ordinary receiving processing in respect to the masked information code. Each receiver is provided with a decoder circuit operative in response to the first data to inhibit an ordinary receiving processing in respect to the masked code and operative in response to the second data to restart the ordinary receiving processing. Thus, the communication system can inhibit information supply only to receivers which is not renewed for contract fee or restart the information supply after the renewal of the contract fee. Further, this system may determine an amount of charge depending upon calls of individual calling number on the basis of a counted value obtained by the first circuitry provided in the base station.

4. 发明专利

GB2154347B PAGING COMMUNICATION SYSTEM 未知
公开(公告)号：GB2154347B
公开(公告)日：1988-01-13
申请号：GB8503433
申请日：1985-02-11
申请人： NEC CORP
发明人： NISHIMURA IZUMI , NAGATA KOICHI
IPC分类号： G08B3/10 , G08B5/22 , H04B5/04 , H04M3/42 , H04W8/24 , H04W88/02
摘要： A paging communication system is configured so that a plurality of receivers are called by group in response to a paging signal transmitted from a base station. The base station is provided with first circuitry comprising a plurality of timers for counting the number of transmissions to each receiver, and second circuitry operative to transmit a first kind of data indicating that the information code assigned to each of the particular receivers is masked and a second kind of data for restarting the ordinary receiving process with respect to the masked information code. Each receiver is provided with a decoder circuit operative in response to the first kind of data to inhibit the ordinary receiving process with respect to the masked code and operative in response to the second kind of data to restart the ordinary receiving process. Thus, the communication system will inhibit the information supply only to receivers which are not current in their contract payments and restart the information supply after payment of the contract fee. Further, this system can determine the appropriate charges based upon the number of calls to each individual calling number as counted by the first circuitry provided in the base station.

5. 发明专利

JPS61112440A Selective call receiver 失效
标题翻译：选择性呼叫接收器
公开(公告)号：JPS61112440A
公开(公告)日：1986-05-30
申请号：JP23382984
申请日：1984-11-06
申请人： Nec Corp
发明人： UMETSU SHINJIRO , YAMAZAKI KOJI , NISHIMURA IZUMI
IPC分类号： H04B7/26
摘要： PURPOSE: To adjust automatically the sound volume of a selective call signal by adjusting the sound volume of the selective call signal generated from a speaker in multi-stage in response to the level of surrounding voice inputted from a microphone.
CONSTITUTION: The surrounding voice signal S
10 inputted from the microphone 10 is amplified by an amplifier 11, the level is stabilized by a diode 14 through an LPF12 and a capacitor 13 and rectified by a diode 15 and converted into a DC by an integration circuit comprising a resistor 16 and a capacitor 17 and inputted to each non-inverting input of three comparators 18∼20. A power supply voltage Vc and voltage levels V
1 ∼V
3 divided by four resistors 21∼24 are inputted respectively to each inverting input of the comparators 18∼20. Each output of the comparators 18∼20 is inputted to a sete terminal S of FE25∼27 as logical 1 or 0.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过响应于从麦克风输入的周围声音的水平，通过调整从多个扬声器产生的选呼信号的音量来自动调节选呼信号的音量。构成：由麦克风10输入的周边语音信号S10被放大器11放大，由二极管14通过LPF12和电容器13稳定电平，并由二极管15整流，并由积分电路转换为DC，该积分电路包括电阻器16和电容器17，并输入到三个比较器18-20的每个同相输入端。将电源电压Vc和由四个电阻器21-24分压的电压电平V1-V3分别输入到比较器18-20的每个反相输入端。比较器18-20的每个输出被输入到FE25-27的集合终端S作为逻辑1或0。

6. 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。

7. 发明专利

JPS6148243A Selective call receiver 失效
标题翻译：选择性呼叫接收器
公开(公告)号：JPS6148243A
公开(公告)日：1986-03-08
申请号：JP16885184
申请日：1984-08-14
申请人： Nec Corp
发明人： UMETSU SHINJIRO , NISHIMURA IZUMI
CPC分类号： H04W84/00
摘要： PURPOSE:To inform a call signal when a call signal has a voltage receptible even under a low voltage display by providing a gate circuit to a decoder detecting the coincidence between an input signal and a stored number so as to use plural informing means. CONSTITUTION:A call signal received through an antenna 1 is demodulated by a demodulator section 2 and the demodulated output is fed to the decoder 4 via a waveform shaping section 3. The decoder 4 compares the waveform shaping signal with a specific number stored in a ROM5 and when they are coincident, a ring tone is generated in a speaker SP7 via an amplifier section 6, and a calling flickering is generated by a light emitting diode D8. When a power supply 9 has a voltage lower than the preset voltae, a low voltage alarm is generated in the SP7 and the D8 generates a continuous light for informing the low voltage. In this state, when the voltage is a voltage receptible of the call signal, althrough the SP7 generates the alarm for low voltage, the gate circuit provided to the decoder 4 allows the D8 to stop the lighting, and after the flickering at call signal reception is lighted for a prescribed time, the D8 restores to light the continuous lighting.
摘要翻译：目的：通过向检测输入信号和存储号码之间的一致性的解码器提供门电路，以便使用多个通知装置，即使在低电压显示下，呼叫信号也具有电压接收，来通知呼叫信号。构成：通过天线1接收的呼叫信号由解调器部分2解调，解调后的输出经由波形整形部分3馈送到解码器4.解码器4将波形整形信号与存储在ROM5中的特定号码进行比较并且当它们重合时，通过放大器部分6在扬声器SP7中产生振铃音，并且由发光二极管D8产生呼叫闪烁。当电源9具有低于预设电压的电压时，在SP7中产生低电压警报，并且D8产生用于通知低电压的连续光。在这种状态下，当电压是接收到呼叫信号的电压时，通过SP7产生低电压报警，提供给解码器4的门电路允许D8停止点亮，并且在呼叫信号接收之后闪烁照亮规定的时间，D8恢复点亮连续照明。

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