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1. 发明授权

US4837854A Paging receiver having a noise-immune verification circuit for disabling battery saving operation 失效
标题翻译：寻呼接收机具有用于禁止电池节省操作的噪声免疫验证电路
公开(公告)号：US4837854A
公开(公告)日：1989-06-06
申请号：US63055
申请日：1987-06-17
申请人： Takashi Oyagi , Toshifumi Sato
发明人： Takashi Oyagi , Toshifumi Sato
IPC分类号： H04B1/16 , H04W52/02 , H04W88/02
CPC分类号： H04B1/1615 , H04W52/0229 , H04W52/0283 , H04W88/022 , Y02B60/50
摘要： A selective calling radio paging receiver includes a battery saving controller which activates the high power drain unit of the receiver at periodic intervals for allowing the detection of a preamble contained in a received digital paging signal and deactivates it for a period longer than the period of activation for power savings purposes. The power saving is disabled in response to the detection of a preamble for continued power activation to permit a sync detector and an address detector to be operated in succession. A window pulse is generated in synchronism with the clock timing of the received digital signal so that its binary level transition is time coincident with each window pulse. If noise occurs in the received signal, binary level transitions occurs which are out of coincidence with window pulses. The time-coincident binary level transitions and the noncoincident binary level transitions are counted to give first and second counts, respectively. If a valid preamble is lost or corrupted and if the first count is greater than the second, a valid indication of the received signal will be given and power activation is continued to operate the sync and address detectors in succession.
摘要翻译：选呼呼叫无线寻呼接收机包括电池节省控制器，其以周期性间隔激活接收机的高功率耗尽单元，以允许检测包含在接收到的数字寻呼信号中的前导码，并将其去激活长于激活周期的时间段用于节电目的。响应于检测到用于继续功率激活的前同步码来禁止功率节省，以允许连续操作同步检测器和地址检测器。与接收的数字信号的时钟定时同步地产生窗口脉冲，使得其二进制电平转换与每个窗口脉冲的时间一致。如果在接收到的信号中发生噪声，则发生与窗口脉冲不一致的二进制电平转换。计时时间二进制电平转换和非重合二进制电平转换分别计算第一和第二计数。如果有效的前同步码丢失或损坏，并且如果第一计数大于第二计数，则将给出接收到的信号的有效指示，并继续执行功率激活以连续操作同步和地址检测器。

2. 发明授权

US5237320A Radio paging system with different transmission speeds and receiver therefor 失效
标题翻译：具有不同传输速度和接收机的无线寻呼系统
公开(公告)号：US5237320A
公开(公告)日：1993-08-17
申请号：US682846
申请日：1991-04-04
申请人： Toshifumi Sato , Takashi Oyagi
发明人： Toshifumi Sato , Takashi Oyagi
IPC分类号： H04L1/00 , H04W8/24 , H04W88/02
CPC分类号： H04W8/245 , H04L1/0071 , H04W88/022
摘要： A paging system includes a receiver adapted for receiving paging signals at a fixed bit rate of N.multidot.R where N is an integer and R is a basic bit rate. A transmitter transmits at the N.multidot.R bit rate, N being adjustable to accommodate any signal for any particular receiver. The transmitter bit rate is selected according to serial data received from a telephone exchange with a message to be transmitted. The transmitter has a degree indicating system producing a first signal representative of a degree N when it receives a signal which is representative of a bit rate N.multidot.R. It has interleaving means for N-degree interleaving of input data having the bit rate N.multidot.R, in response to the first signal, to produce an interleaved signal; and transmitting means for transmitting said interleaved signal. The receiver has means for receiving a signal whose bit rate is N.multidot.R bit rate indicating means for outputting a first signal which is representative of N; de-interleaving means for N-degree de-interleaving the received signal, in response to the first signal, to produce a de-interleaved signal; and deciding means for deciding whether or not a paging address number, which may be included in the de-interleaved signal, is assigned to the receiver. Alarm means may produce an audible alarm in response to an output of the deciding means.
摘要翻译：寻呼系统包括适于以N×R的固定比特率接收寻呼信号的接收机，其中N是整数，R是基本比特率。发射机以NxR比特率发射，N可调节以适应任何特定接收机的任何信号。发送器比特率根据从具有要发送的消息的电话交换机接收的串行数据来选择。发射机具有度数指示系统，当其接收到代表比特率NxR的信号时，产生表示度数N的第一信号。它具有用于响应于第一信号而具有比特率NxR的输入数据的N度交错的交织装置，以产生交错信号; 以及用于发送所述交错信号的发送装置。接收机具有接收信号的装置，其比特率是N×R比特率指示装置，用于输出代表N的第一信号; 解交织装置，用于响应于第一信号对接收信号进行N度解交织，以产生解交织信号; 以及判定装置，用于判定可以包括在解交织信号中的寻呼地址号码是否被分配给接收机。响应于决定装置的输出，报警装置可能产生声音报警。

3. 发明授权

US4839639A Paging receiver having battery saving circuit 失效
标题翻译：寻呼接收机具有省电电路
公开(公告)号：US4839639A
公开(公告)日：1989-06-13
申请号：US2329
申请日：1987-01-12
申请人： Toshifumi Sato , Takashi Oyagi
发明人： Toshifumi Sato , Takashi Oyagi
IPC分类号： H04W52/02 , H04W88/02
CPC分类号： H04W52/0229 , H04W52/0283 , H04W88/022
摘要： A paging receiver includes an improved battery saving circuit which reduces battery usage by powering the radio section and the waveform shaping circuitry only during intervals which include address codewords specific to the given receiver group. Power is not supplied during intervals containing synchronization code signals other than during the first such interval directly following the preamble code. Upon detecting a preamble code during said intervals, power is supplied continuously for a time period sufficient to encompass the synchronization code interval.
摘要翻译：寻呼接收机包括改进的电池节省电路，其仅在包括给定接收机组特定的地址码字的间隔期间为无线电部分和波形整形电路供电而减少电池使用。在包含同步代码信号的间隔期间不提供功率，而不是直接在前导码之后的第一个这样的间隔期间。在所述间隔期间检测到前导码时，连续提供电力足以包含同步码间隔的时间段。

4. 发明授权

US4818987A Selective paging receiver with message display 失效
标题翻译：具有消息显示功能的选择性寻呼机
公开(公告)号：US4818987A
公开(公告)日：1989-04-04
申请号：US942603
申请日：1986-12-17
申请人： Motoki Ide , Takashi Oyagi
发明人： Motoki Ide , Takashi Oyagi
IPC分类号： H04W88/02 , H04Q1/00
CPC分类号： H04W88/023 , H04W88/026
摘要： A selective paging receiver with message display has a receiver section, a number setting circuit, a paging number detector, and a display panel. The receiver section receives paging signals sent to the paging receiver, and recovers a paging number data signal and a message data signal from the paging signals. The message data signal includes both individual message data for the paging receiver, and common message data for the paging receiver in common with a preselected group of similar receivers. A number setting circuit assigns both a preselected individual paging number and a preselected common paging number to the receiver. The paging number detector searches for the individual paging number in a particular group time frame of the paging number signal. This time frame corresponds to a paging receiver group to which the paging receiver belongs. The paging number detector conducts a parallel search for the common paging number without regard for the particular group time frame. Upon detection of the individual paging number, the paging number detector outputs an individual detection signal. Upon detection of the common paging number, the paging number detector outputs a common detection signal. The display responds to the individual detection signal by displaying the contents of the individual message data and responds to the common detection signal by displaying the contents of the common message data.
摘要翻译：具有消息显示的选择性寻呼机具有接收机部分，号码设定电路，寻呼号码检测器和显示面板。接收器部分接收发送到寻呼机的寻呼信号，并从寻呼信号中恢复寻呼号数据信号和消息数据信号。消息数据信号包括用于寻呼接收机的单个消息数据和与预选的类似接收机组共同的寻呼接收机的公共消息数据。数字设置电路将预选的个人寻呼号码和预选的公共寻呼号码分配给接收机。寻呼号码检测器在寻呼号码信号的特定组时间帧内搜索各寻呼号码。该时间帧对应于寻呼接收机所属的寻呼接收机组。寻呼号码检测器对于公共寻呼号码进行并行搜索，而不考虑特定的组时间帧。在检测到个别寻呼号码时，寻呼号码检测器输出单独的检测信号。在检测到公共寻呼号码时，寻呼号码检测器输出公共检测信号。显示器通过显示各个消息数据的内容来响应各个检测信号，并通过显示公共消息数据的内容来响应公共检测信号。

5. 发明授权

US4956641A Radio paging device having circuitry of rewriting a stored message with error-free characters 失效
标题翻译：无线寻呼装置具有用无错字符重写存储的消息的电路
公开(公告)号：US4956641A
公开(公告)日：1990-09-11
申请号：US179254
申请日：1988-04-08
申请人： Masahiro Matai , Takashi Oyagi , Yutaka Ichikawa , Shinjiro Umetsu
发明人： Masahiro Matai , Takashi Oyagi , Yutaka Ichikawa , Shinjiro Umetsu
IPC分类号： H04Q7/14 , G08B5/22
CPC分类号： G08B5/22 , G08B5/227 , G08B5/229
摘要： In a radio display pager, each character of a received multi-character message is checked for error. A first message arrival or a first receive message is stored in a temporary memory and thereafter rewritten into one of main memories when the next message or second message arrival is received. The temporary memory stores the most recent message arrival and the main memories store a plurality of like messages, according to their successive order of earlier arrivals. Each of the messages in both memories contain both error-free and error-containing characters. The characters stored in the temporary memory respectively correspond in position to the characters stored in each of the main memories. A comparison is made between each error-free character in the temporary memory and each of the positionally corresponding error-free characters in one of the main memories in order to detect a match and mismatch. If a mismatch is detected, all characters of each main memory are transferred to an adjacent main memory in order to vacate a storage area. Then, all characters in the temporary memory are transferred to the vacated area for display. If a match is detected, it is counted for all characters of the received message. If the count is smaller than a threshold value, all characters of each main memory are transferred to an adjacent main memory in order to vacate a storage area. All characters in the temporary memory are transferred to that vacated area for display. If the count of the matches is greater than the threshold value, all the error-free characters in the temporary memory are transferred to one of the main memories for display.
摘要翻译：在无线电显示寻呼机中，检查接收的多字符消息的每个字符的错误。第一消息到达或第一接收消息被存储在临时存储器中，然后当接收到下一消息或第二消息到达时，将其重写为主存储器之一。临时存储器存储最近的消息到达，并且主存储器根据其先前到达的连续顺序存储多个相似的消息。两个内存中的每个消息都包含无错误和含错误的字符。存储在临时存储器中的字符分别对应于存储在每个主存储器中的字符的位置。在临时存储器中的每个无错误字符和主存储器之一中的每个位置相应的无错误字符之间进行比较，以便检测匹配和不匹配。如果检测到不匹配，则每个主存储器的所有字符都被传送到相邻的主存储器以腾出存储区域。然后，临时存储器中的所有字符都被传送到空闲区域进行显示。如果检测到匹配，则对所接收消息的所有字符进行计数。如果计数小于阈值，则每个主存储器的所有字符都被传送到相邻的主存储器以腾出存储区域。临时存储器中的所有字符都将传输到该空闲区域进行显示。如果匹配的计数大于阈值，则将临时存储器中的所有无错误字符传送到主存储器之一进行显示。

6. 发明授权

US4870403A Paging receiver with a capability of receiving or inhibiting message data 失效
标题翻译：寻呼接收机具有接收或禁止消息数据的能力
公开(公告)号：US4870403A
公开(公告)日：1989-09-26
申请号：US35348
申请日：1987-04-07
申请人： Toshihiro Mori , Takashi Oyagi
发明人： Toshihiro Mori , Takashi Oyagi
IPC分类号： G08B3/10 , G08B5/22 , H04W8/24 , H04W88/02
CPC分类号： H04W8/245 , G08B3/1016 , G08B3/1091 , G08B5/224 , H04W88/022
摘要： A paging receiver is capable of receiving message data. The receiver includes a data set and a hold circuit, the output logic of which is inverted in response to the detection of a control signal which follows a paging number individually assigned to that receiver. The receiver is inhibited and excluded from or enabled and restored into a data service which is provided in response to a common or group call number for paging many and unspecified receivers. The inhibit or enable signal is provided by the output of the data set and hold circuit. The data set and hold circuit are powered by a power source which is different from a main power source of the receiver. The receiver determines whether or not the power source associated with the data set and hold circuit is present and, if it is not present, the receipt of the data service based on the common number is inhibited. To eliminate malfunctions due to static electricity, a train of pulses is used as a control signal which follows a paging signal assigned to the individual receiver. The data set and hold circuit responds to means for sensing the pulse train, whereby the receipt of the date service which is based on the common number is inhibited or recovered by an output of the data set and hold circuit.
摘要翻译：寻呼接收机能够接收消息数据。接收机包括数据组和保持电路，其输出逻辑响应于跟随分配给该接收机的寻呼号码的控制信号的检测而被反转。接收机被禁止并被排除或启用并恢复到数据服务中，数据服务响应于用于寻呼许多和未指定的接收机的公共或组呼号而提供。禁止或使能信号由数据组和保持电路的输出提供。数据保持电路由与接收机的主电源不同的电源供电。接收器确定与数据设置和保持电路相关联的电源是否存在，并且如果不存在，则禁止基于公共号的数据服务的接收。为了消除由于静电引起的故障，使用一串脉冲作为跟随分配给各接收机的寻呼信号的控制信号。数据保持电路响应用于感测脉冲串的装置，由此基于公共数字的日期服务的接收被数据设置和保持电路的输出禁止或恢复。

7. 发明授权

US4829544A Bit synchronization circuit 失效
标题翻译：位同步电路
公开(公告)号：US4829544A
公开(公告)日：1989-05-09
申请号：US32853
申请日：1987-03-31
申请人： Takashi Oyagi , Shigeo Yoshizawa
发明人： Takashi Oyagi , Shigeo Yoshizawa
IPC分类号： H03L7/06 , H04L7/033
CPC分类号： H04L7/0331
摘要： A synchronizing circuit for synchronizing the phase of a clock signal to the phase of a received digital signal includes a phase monitoring circuit for detecting, during each bit period of the digital signal, the phase advance of delay of the clock signal relative to the digital signals. A phase signal is outputting which is indicative of the phase advance or delay of the clock signal. A phase control circuit responds to the phase signal to either advance, delay or leave unchanged the phase of the clock signal with respect to the received digital signal. An inhibiting circuit coupled to the phase control circuit operates to prevent the phase control circuit from reversing the sense of the phase adjustment from advance to delay or from delay to advance in consecutive bit positions, interposing instead one bit position during which the phase of the clock signal is left unadjusted.
摘要翻译：用于将时钟信号的相位与接收的数字信号的相位同步的同步电路包括相位监视电路，用于在数字信号的每个位周期期间检测相对于数字信号的时钟信号的延迟的相位超前。相位信号是表示时钟信号的相位提前或延迟的输出。相位控制电路对相位信号进行响应，以相对于所接收的数字信号提前，延迟或保持时钟信号的相位不变。耦合到相位控制电路的禁止电路用于防止相位控制电路将相位调整的感觉从提前延迟或从连续位位置的延迟改变为前进，而是插入时钟的相位的一位位置信号未被调整。

8. 发明授权

US4779091A Radio pager receiver capable of informing whether or not memory backup is correct 失效
标题翻译：能够通知存储器备份是否正确的无线寻呼机接收机
公开(公告)号：US4779091A
公开(公告)日：1988-10-18
申请号：US8193
申请日：1987-01-29
申请人： Takashi Oyagi , Toshihiro Mori
发明人： Takashi Oyagi , Toshihiro Mori
IPC分类号： G08B5/22
CPC分类号： G08B5/227
摘要： A radio pager receiver has a memory with a message area, and an additional area and a message processor for processing a message signal into messages and to store the messages in the message area. A specific datum is written (S6) in the additional area by the message processor. Although the message processor and the memory are activated by main electric power of a power supply circuit, only the memory is backed up by backup electric power of a backup power source. When the memory and the message processor are activated after once deactivated, the message processor judges (S2) whether or not the specific datum is correctly kept. The message processor controls display (S3 and S4) of a result of judgement. In the message area and the additional area, entries may be erased (S8) by the message processor when the specific datum is not correctly kept. When the specific datum is correctly kept, the message processor may make a display unit display each of the messages together with an announcement which indicates whether or not the each of the messages is subjected to a backup operation by the backup electric power.
摘要翻译：无线寻呼机接收机具有具有消息区域的存储器，以及用于将消息信号处理成消息并将消息存储在消息区域中的附加区域和消息处理器。消息处理器在附加区域中写入（S6）特定的数据。虽然消息处理器和存储器被电源电路的主电源激活，但只有存储器由备用电源的备用电力备份。当存储器和消息处理器在一旦停用之后被激活时，消息处理器判断（S2）是否正确地保存了特定的数据。消息处理器控制判断结果的显示（S3和S4）。在消息区域和附加区域中，当特定数据未被正确保存时，消息处理器可以删除条目（S8）。当正确地保留特定数据时，消息处理器可以使显示单元显示每个消息以及指示每个消息是否由备用电力进行备份操作的通知。

9. 发明授权

US4745408A Radio paging system and receiver therefor 失效
标题翻译：无线寻呼系统及其接收机
公开(公告)号：US4745408A
公开(公告)日：1988-05-17
申请号：US597788
申请日：1984-04-06
申请人： Koichi Nagata , Takashi Oyagi , Toshihiro Mori
发明人： Koichi Nagata , Takashi Oyagi , Toshihiro Mori
IPC分类号： G08B3/10 , H04W52/02 , H04W88/02 , H04W88/18 , G08B5/22 , H04Q3/02
CPC分类号： H04W88/187 , G08B3/1066 , H04W52/0216 , H04W52/0232 , H04W88/022 , Y02B60/50
摘要： A radio paging system, comprising a transmitting base station and a paging receiver with a battery-saving function. The paging receiver operates intermittently at different repetition periods, depending on the call traffic density. When there are fewer calls, the receiver operates less frequently, in order to avoid unnecessary operation and consequent battery drain. When there is a call to be sent, the period between attempted detections of a preamble code word is shortened. The receivers then lengthen the period for detecting a message, and receive a sync code word, followed by an address code word, which alerts the particular receiver being paged, an alert tone being generated. The message ends with a battery saving code word and ending code word. The battery saving code word alerts the receivers to lengthen the period between attempted detections of the preamble code word. The variation in length of periods between attempted detection is a battery-saving feature.
摘要翻译：一种无线寻呼系统，包括发送基站和具有省电功能的寻呼机。寻呼接收机根据呼叫业务密度在不同的重复周期间歇地操作。当呼叫较少时，接收机操作较少，以避免不必要的操作和随之而来的电池耗尽。当有呼叫被发送时，前导码字的尝试检测之间的周期被缩短。然后，接收器延长用于检测消息的周期，并且接收同步码字，随后是一个地址码字，其提醒特定接收机被寻呼，产生警报音。该消息以电池保存代码字和结束代码字结束。电池节省代码字警告接收器以延长尝试检测前置码码字之间的周期。尝试检测之间的时间长度的变化是电池省电功能。

10. 发明授权

US4713659A Pager with display 失效
标题翻译：寻呼机与显示
公开(公告)号：US4713659A
公开(公告)日：1987-12-15
申请号：US754112
申请日：1985-07-12
申请人： Takashi Oyagi , Kazuyuki Tsunoda
发明人： Takashi Oyagi , Kazuyuki Tsunoda
IPC分类号： H04Q7/14 , G02F1/133 , G08B3/10 , G08B5/22 , G09F9/00 , G09G3/18 , H04B5/04 , H04Q7/20
CPC分类号： G02F1/13318 , G08B3/1016 , G08B5/225 , G02F2001/133618
摘要： A pager with a passive display, for example, a liquid crystal display, also has a sensor for sensing ambient light levels. The display is automatically illuminated when the ambient light level falls below a given threshold and the sensor is then either altered to detect a higher light level or disabled for a given time period so that the illumination does not falsely affect the sensor.
摘要翻译：具有无源显示器的寻呼机，例如液晶显示器，还具有用于感测环境光照水平的传感器。当环境光水平下降到给定阈值以下时，显示器自动亮起，然后改变传感器以检测更高的光级或在给定时间段内禁用，使得照明不会虚假地影响传感器。

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