公开(公告)号：US5724651A

公开(公告)日：1998-03-03

申请号：US506846

申请日：1995-07-25

申请人： Satoshi Takahashi ,  Masahiro Matai

发明人： Satoshi Takahashi ,  Masahiro Matai

IPC分类号： H04B1/16 ,  H04Q7/18 ,  H04B17/00

CPC分类号： H04W52/0283

摘要： In a radio receiver comprising a battery, a local oscillator, a mixer, a demodulator and a controller, a voltage level of the battery is detected within the rise time of the local oscillator after the power is supplied thereto. The power is intermittently supplied to the local oscillator and other circuits. Before the rise of the local oscillator, the voltage level is selected to check the battery. After the rise of the local oscillator, the demodulated signal is selected to perform usual receiving operation. The rise of the local oscillator is detected by comparing an amplitude of the intermediate frequency signal with a reference value. The voltage level and the demodulated signal are transferred to the controller through a single port.

摘要翻译： 在包括电池，本地振荡器，混频器，解调器和控制器的无线电接收机中，在向其提供电力之后，在本地振荡器的上升时间内检测电池的电压电平。 电源间歇地提供给本地振荡器和其他电路。 在本地振荡器上升之前，选择电压电平以检查电池。 在本地振荡器上升之后，选择解调信号来执行通常的接收操作。 通过将中频信号的幅度与参考值进行比较来检测本地振荡器的上升。 电压电平和解调信号通过单个端口传输到控制器。

公开(公告)号：US5649314A

公开(公告)日：1997-07-15

申请号：US421068

申请日：1995-04-13

申请人： Kazumori Yamada ,  Masahiro Matai

发明人： Kazumori Yamada ,  Masahiro Matai

IPC分类号： H04B7/26 ,  H04B1/16 ,  H04W52/02 ,  H04B1/10

CPC分类号： H04W52/0283 ,  Y02B60/50

摘要： In a selective radio paging receiver, power supply for a local oscillator portion which has the longest period to take up to normal operation from on-set of power supply is performed with an elevated voltage higher than the battery voltage in the normal operation to shorten the take-up period. Subsequently, the battery voltage is supplied to the local oscillator portion together with the radio reception portion, wave shaper circuit and so forth. Therefore, power supply for the radio reception portion and the wave shaper circuit can be delayed to shorten the overall power supply period to improve battery saving effect.

摘要翻译： 在选择性无线寻呼接收机中，通过在正常操作中高于电池电压的升高的电压来执行从设定的电源具​​有最长期间变为正常工作的本地振荡器部分的电源，以缩短 收回期 随后，电池电压与无线电接收部分，波形整形电路等一起提供给本地振荡器部分。 因此，无线电接收部分和波形整形器电路的电源可以被延迟以缩短整个电源周期，以提高电池节省效果。

公开(公告)号：US5221923A

公开(公告)日：1993-06-22

申请号：US795260

申请日：1991-11-19

申请人： Kazuyuki Tsunoda ,  Masahiro Matai

发明人： Kazuyuki Tsunoda ,  Masahiro Matai

IPC分类号： G08B3/10 ,  H04W88/02

CPC分类号： H04W88/022 ,  G08B3/1025

摘要： In a radio communication apparatus for selectively receiving call signals indicative of call numbers, respectively, a decoder receives, in cooperation with a P-ROM, each of the call signals as a received signal and processes the received signal into a common call tone signal representative of reception of the received signal regardless of the call numbers. The decoder makes a tone generator generate a common tone in response to the common call tone signal to indicate arrival of reception of one of the call signals. When a manual operable switch is operated, the decoder makes the tone generator stop generation of the common tone and classify the received signal into one of individual tone signals corresponding to the respective call numbers. Subsequently, the decoder makes the tone generator generate a particular tone indicating the call number of the received signal in question. When the switch is again operated, the decoder makes the tone generator stop generation of the particular tone.

摘要翻译： 在分别用于选择性地接收表示呼叫号码的呼叫信号的无线通信装置中，解码器与P-ROM协作接收每个呼叫信号作为接收信号，并将接收的信号处理成公共呼叫音信号代表 接收信号，而不管呼叫号码如何。 解码器使得音调发生器响应于公共呼叫音信号而产生公共音调，以指示其中一个呼叫信号的接收到达。 当操作手动操作开关时，解码器使音调发生器停止产生公共音调，并将接收到的信号分类为与相应呼叫号码相对应的各音调信号之一。 随后，解码器使得音调发生器产生指示所讨论的接收信号的呼叫号码的特定音调。 当开关再次被操作时，解码器使音调发生器停止产生特定的音调。

公开(公告)号：US4786901A

公开(公告)日：1988-11-22

申请号：US89227

申请日：1987-07-28

申请人： Masahiro Matai ,  Takashi Ohyagi ,  Toshihiro Mori

发明人： Masahiro Matai ,  Takashi Ohyagi ,  Toshihiro Mori

IPC分类号： G08B3/10 ,  G08B5/22 ,  H04B1/16 ,  H04B7/26 ,  H04W88/02 ,  H04Q7/00

CPC分类号： H04W88/023 ,  G08B3/1016 ,  G08B3/105 ,  G08B3/1091 ,  G08B5/227

摘要： In a paging receiver with an individual paging number and at least one common paging number, there is provided memory means including individual memory means including individual memory areas capable of storing at least one message signal following the individual number and specific memory areas storing message signals following the common paging number. The receiver can protect individual address information and can efficiently utilize the memory areas even when the user does not use all common addresses.

摘要翻译： 在具有单独寻呼号码和至少一个公共寻呼号码的寻呼机中，提供了存储装置，其包括各自的存储装置，该存储装置包括独立的存储区域，该存储器装置能够存储紧跟在个别号码之后的至少一个消息信号，并且存储消息信号 共同寻呼号码。 接收机可以保护单个地址信息，并且即使当用户不使用所有公共地址时也可以有效地利用存储区域。

公开(公告)号：US5761617A

公开(公告)日：1998-06-02

申请号：US497723

申请日：1995-06-30

申请人： Kunitoshi Yonekura ,  Masahiro Matai

发明人： Kunitoshi Yonekura ,  Masahiro Matai

IPC分类号： H03L7/18 ,  H04B1/16 ,  H04B7/26 ,  H04W52/02 ,  H04W88/02

CPC分类号： H04B1/1615 ,  H04W52/0283 ,  H04W88/022

摘要： In a radio paging receiver which is for receiving call signals and which includes a control section (5) for making each of a PLL synthesizer section (4), a frequency converter section (2), and a demodulator section (3) carry out intermittent operation selectively in a short intermittent operation cycle synchronized with the call signals and in a long intermittent operation cycle longer than the short intermittent operation cycle, the PLL synthesizer has first and second loop filters (7 and 8) having first and second time constants, respectively. The second time constant is larger than the first time constant. One of the first and the second loop filters is selectively operable at a time. The control section further controls the first and the second loop filters so that the first loop filter is selectively operable when the contol section makes each of the PLL synthesizer section, the frequency converter section, and the demodulator section carry out the intermittent operation in the short intermittent operation cycle and that the second loop filter is selectively operable when the contol section makes each of the PLL synthesizer section, the frequency converter section, and the demodulator section carry out the intermittent operation in the long intermittent operation cycle.

摘要翻译： 在用于接收呼叫信号的无线寻呼接收机中，包括用于使PLL合成部分（4），频率转换器部分（2）和解调器部分（3）中的每一个进行间歇的控制部分（5） 所述PLL合成器具有分别与第一和第二时间常数分别具有第一和第二环路滤波器（7和8）的短时间间歇运行周期，与短暂的间歇运行周期长时间间隔地运行， 。 第二时间常数大于第一时间常数。 第一和第二环路滤波器之一可以一次选择性地操作。 控制部分进一步控制第一和第二环路滤波器，使得当轮廓部分使得每个PLL合成器部分，频率转换器部分和解调器部分在短路中执行间歇操作时，第一环路滤波器可选择性地操作 并且当轮廓部分使得每个PLL合成器部分，频率转换器部分和解调器部分在长间歇操作周期中执行间歇操作时，第二环路滤波器可选择性地操作。

公开(公告)号：US5678216A

公开(公告)日：1997-10-14

申请号：US325635

申请日：1994-10-19

申请人： Masahiro Matai

发明人： Masahiro Matai

IPC分类号： H01Q1/24 ,  H04B1/08 ,  H04B1/06

CPC分类号： H04B1/086 ,  H01Q1/243

摘要： A radio pager for receiving a paging signal with a half-size microstrip antenna. A pair of electrical conductive elements sandwich a printed circuit board on which elements constituting pager circuitry are mounted. The conductive elements and conductive connecting pins fastening them constitute an electromagnetic shield case for the circuitry elements, reducing the radiation of unnecessary electromagnetic waves to the outside from the circuitry mounted on the printed circuit board, particularly a local oscillation circuit. Since the antenna has an earth plate thereof connected to one of the conductive plates with respect to high frequency, the conductive plate plays the role of an earth plate at the same time. As a result, a microstrip base plate is miniaturized while the space available for parts is increased. A ground conductive portion surrounds the antenna element and conceals screws and other conductive structural parts, whereby the antenna directivity pattern is not susceptible to changes in the dimension and position of the conductive structural parts. The conductor of the antenna element may be formed with slits to further miniaturize the antenna element and, therefore, the entire pager.

摘要翻译： 一种无线寻呼机，用于接收具有半尺寸微带天线的寻呼信号。 一对导电元件夹着安装有构成寻呼机电路的元件的印刷电路板。 固定它们的导电元件和导电连接销构成用于电路元件的电磁屏蔽壳体，从安装在印刷电路板上的电路，特别是本地振荡电路减少对外部的不必要的电磁波的辐射。 由于天线具有相对于高频连接到导电板之一的接地板，所以导电板同时起到接地板的作用。 结果，微型板基板小型化，而可用于零件的空间增加。 接地导电部分围绕天线元件并且隐藏螺钉和其它导电结构部件，由此天线方向性图案不易受导电结构部件的尺寸和位置的变化的影响。 天线元件的导体可以形成狭缝，以进一步使天线元件小型化，从而使整个寻呼机小型化。

公开(公告)号：US5525974A

公开(公告)日：1996-06-11

申请号：US360070

申请日：1994-12-20

申请人： Masahiro Matai

发明人： Masahiro Matai

IPC分类号： H04B7/26 ,  H04W52/02 ,  H04W88/02 ,  H04Q7/14

CPC分类号： H04W88/026 ,  H04W52/0229 ,  Y02B60/50

摘要： In a radio selective calling receiver or so-called a pager having a middle synchronization function, detection of a BCH code is performed after synchronization is established by erroneous detection of synchronization caused by noise. With this operation, setting of the SC search mode after erroneous detection of synchronization caused by noise is prevented, thereby reducing the power consumption of the radio selective calling receiver.

摘要翻译： 在具有中间同步功能的无线电选呼接收机或所谓的寻呼机中，通过由噪声引起的同步的错误检测建立同步之后，执行BCH码的检测。 通过该操作，防止了由噪声导致的同步错误检测之后的SC搜索模式的设置，从而降低了无线电选呼接收机的功耗。

公开(公告)号：US5463380A

公开(公告)日：1995-10-31

申请号：US161091

申请日：1993-12-03

申请人： Masahiro Matai

发明人： Masahiro Matai

IPC分类号： G08B3/10 ,  G08B29/18 ,  G08B5/22

CPC分类号： G08B3/1025 ,  G08B29/181

摘要： A paging receiver having alerting means implemented as a speaker and a light emitting diode (LED). The paging receiver has a decoder for outputting a pair of periodically varying drive signals on determining that a call meant for the receiver has been received, a speaker drive for causing a speaker to sound in the pattern of either one of two drive pattern signals, and an LED driver for turning on the LED in the other pattern. The drive periods of the two drive pattern signals are arranged alternately with each other and such that they do not overlap each other, whereby the luminance of the LED is maintained at a sufficiently high level even when a battery powering the paging receiver reaches the last stage of its service life.

摘要翻译： 具有实现为扬声器和发光二极管（LED）的报警装置的寻呼机。 寻呼接收机具有解码器，用于在确定已接收到对接收机的呼叫时输出一对周期性变化的驱动信号;扬声器驱动器，用于使扬声器以两种驱动模式信号中的任一种的模式发出声音;以及 一个用于打开其他图案中的LED的LED驱动器。 两个驱动模式信号的驱动周期彼此交替布置，使得它们不彼此重叠，由此即使当为寻呼机供电的电池到达最后阶段时，LED的亮度也保持在足够高的水平 的使用寿命。

公开(公告)号：US5193220A

公开(公告)日：1993-03-09

申请号：US531838

申请日：1990-06-01

申请人： Makoto Ichinohe ,  Masahiro Matai ,  Shinjiro Umetsu ,  Seiji Nishikawa

发明人： Makoto Ichinohe ,  Masahiro Matai ,  Shinjiro Umetsu ,  Seiji Nishikawa

IPC分类号： H03J1/00

CPC分类号： H03J1/00 ,  Y10T307/839

摘要： A battery pack mounting device for portable radio equipment having a built-in antenna. The device determines a position of a battery pack, which powers the equipment, inserted in a battery pack accommodating portion provided in the equipment. Various constants which determine the antenna characteristic of the equipment are controlled on the basis of the determined position of the battery pack, thereby maintaining the optimum antenna characteristic at all times. When the device is applied to a charging unit which charges a rechargeable battery, the opposite electrodes of the battery are electrically correctly connected to a pair of connecting terminals which are provided in the charging unit and connected to opposite poles of a charging circuit as the battery pack is inserted in a battery chamber defined in the charging unit. Even when the battery pack is placed in the battery chamber upside down, the opposite electrodes of the battery are accurately connected to the connecting terminals of the charging unit.

摘要翻译： 一种具有内置天线的便携式无线电设备的电池组安装装置。 设备确定插入设备中设置的电池组容纳部分中的设备供电的电池组的位置。 基于确定的电池组的位置来控制确定设备的天线特性的各种常数，从而始终保持最佳的天线特性。 当将装置应用于对可再充电电池充电的充电单元时，电池的相对电极电连接到设置在充电单元中并连接到充电电路的相反极的一对连接端子，作为电池 包装被插入在充电单元中限定的电池室中。 即使当电池组被倒置放置在电池室中时，电池的相对电极被精确地连接到充电单元的连接端子。

公开(公告)号：US4876536A

公开(公告)日：1989-10-24

申请号：US256837

申请日：1988-10-12

申请人： Masahiro Matai ,  Kazuyuki Tsunoda

发明人： Masahiro Matai ,  Kazuyuki Tsunoda

IPC分类号： G08B5/38

CPC分类号： G08B5/38

摘要： A paging receiver or a miniature receiver having a light emitting flashing circuit is provided in which a single boosting coil is shared by two light emitting elements and therefore the number of boosting coils required is one-half the number of light emitting diodes.