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    • 2. 发明授权
    • Voice recording and playback mode using the G.726 half-rate within the personal handy phone system
    • 语音录音和播放模式使用个人手机系统内的G.726半速率
    • US06574281B1
    • 2003-06-03
    • US09753824
    • 2001-01-02
    • Satoshi YoshidaPatrick FeyfantPhilippe GaglioneDenis ArchambaudVarenka MartinLaurent WinckelRita LagomarsinoOliver Weigelt
    • Satoshi YoshidaPatrick FeyfantPhilippe GaglioneDenis ArchambaudVarenka MartinLaurent WinckelRita LagomarsinoOliver Weigelt
    • H04B1406
    • H04M1/725H04B14/068H04M1/6505
    • Voice recording and playback mode using the G.726 half-rate within the personal handy phone system (PHS). When a portable station within the PHS operates as a voice recorder (e.g., functioning as an answering machine), a cost effective system in accordance with the present invention is adapted to compress and store received voice/sound signals in order to increase the usage of limited memory resources provided within the portable station. The present invention also enables previously compressed and stored voice/sound signals to be decompressed and played back in various portable station playback modes. Specifically, the portable station receives a voice/sound signal in a full rate (e.g., 32 kilobits-per-second) 4-bit adaptive differential pulse code modulation (ADPCM) data format in compliance with the International Telecommunication Union (ITU) recommendation G.726. The present invention compresses this received voice/sound signal to a half rate (16 kilobit-per-second) 2-bit ADPCM data format in compliance with the ITU recommendation G.726 in order to increase the usage of the limited memory resources provided within the portable station. During a playback mode of the portable station, the present invention decompresses the previously compressed and stored voice/sound signal to facilitate its playback.
    • 录音和播放模式使用个人手机系统(PHS)内的G.726半速率。 当PHS内的便携式站作为语音记录器(例如,用作应答机)时,根据本发明的成本有效的系统适于压缩和存储接收到的语音/声音信号,以便增加使用 在便携式站内提供的有限的存储器资源。 本发明还使得先前压缩和存储的语音/声音信号能够以各种便携式电台播放模式被解压缩和重放。 具体来说,便携式电台以符合国际电信联盟(ITU)推荐G的全速率(例如,32千比特每秒)4位自适应差分脉码调制(ADPCM)数据格式接收语音/声音信号 .726。 本发明根据ITU推荐G.726将该接收到的语音/声音信号压缩到半速率(16千比特每秒)2位ADPCM数据格式,以便增加在内部提供的有限存储器资源的使用 便携式电台。 在便携式终端的回放模式期间,本发明解压缩先前压缩和存储的语音/声音信号以便于其播放。
    • 3. 发明授权
    • Direct digital down conversion of a 10.8 MHz intermediate frequency
signal in the personal handy phone system
    • 在个人手持电话系统中直接数字下变频10.8 MHz中频信号
    • US06134429A
    • 2000-10-17
    • US58611
    • 1998-04-10
    • Patrick FeyfantLaurent WinckelSatoshi YoshidaPhilippe GaglioneVarenka MartinOliver WeigeltDenis Archambaud
    • Patrick FeyfantLaurent WinckelSatoshi YoshidaPhilippe GaglioneVarenka MartinOliver WeigeltDenis Archambaud
    • H03D3/00H04B1/28H04B1/30H04L27/22H04Q7/32
    • H04B1/0007H03D3/006H04B1/28H04B1/30H04L27/22
    • A system for a direct digital down conversion of a 10.8 MHz intermediate frequency signal in the personal handy phone system. The present invention includes a system that enables a direct digital down conversion of a 10.8 MHz intermediate frequency signal into a digital baseband signal within cell stations and portable stations of the personal handy phone system. To perform this direct digital down conversion of a 10.8 MHz intermediate frequency signal, one embodiment of the present invention uses a hard limiter circuit, a sampler circuit and a digital down converter circuit. The hard limiter circuit of the present invention receives a 10.8 MHz intermediate frequency signal, utilized within cell stations and portable station of the personal handy phone system, and provides a threshold for it. The sampler circuit uses a 19.2 MHz oscillating clock signal to sample the intermediate frequency signal that is output from the hard limiter circuit. Due to spectral leakage, the 10.8 MHz intermediate frequency signal that was input into the sampler circuit is output as an 8.4 MHz intermediate frequency signal. The digital down converter circuit uses an 8.4 MHz signal to perform a digital down conversion of the 8.4 MHz intermediate frequency signal into a digital baseband signal. The present invention provides a system that utilizes only one digital down conversion stage to perform a direct digital down conversion of a 10.8 MHz intermediate frequency signal into a digital baseband signal.
    • 一种用于个人手持电话系统中的10.8MHz中频信号的直接数字下变频的系统。 本发明包括一种能够将10.8MHz中频信号直接数字下转换成个人便携式电话系统的小区站和便携式站内的数字基带信号的系统。 为了执行10.8MHz中频信号的这种直接数字下变频,本发明的一个实施例使用硬限幅器电路,采样器电路和数字下变频电路。 本发明的硬限制器电路接收在个人便携式电话系统的小区站和便携式站内使用的10.8MHz中频信号,并为其提供阈值。 采样器电路使用19.2MHz振荡时钟信号对从硬限幅器电路输出的中频信号进行采样。 由于频谱泄漏,输入到采样器电路的10.8 MHz中频信号作为8.4 MHz中频信号输出。 数字降频转换器电路使用8.4MHz信号来执行8.4MHz中频信号的数字下变频转换为数字基带信号。 本发明提供一种仅使用一个数字下变频级来执行10.8MHz中频信号的直接数字下变频到数字基带信号的系统。
    • 8. 发明授权
    • Conference call on a personal handy phone system portable station
    • 个人电话系统便携式电话会议电话
    • US5949764A
    • 1999-09-07
    • US975943
    • 1997-11-21
    • Satoshi YoshidaPatrick FeyfantLaurent WinckelDenis ArchambaudOliver WeigeltPhilippe GaglioneVarenka Martin
    • Satoshi YoshidaPatrick FeyfantLaurent WinckelDenis ArchambaudOliver WeigeltPhilippe GaglioneVarenka Martin
    • H04M3/56H04W4/00H04L12/28
    • H04M3/56H04M2207/18H04W4/00
    • A system that enables a portable station of the personal handy phone system to support a conference call. The present invention provides this capability by empowering a portable station to communicate with up to four cell stations simultaneously enabling the user of the portable station to communicate with the users of four other telecommunication devices. Specifically, the present invention modifies the internal circuitry of a portable station to increase the number of receiving channel circuits to four and the transmitting channel circuits to four while adding a digital signal processor to mix the different received and outgoing voice signals. The increased number of receiving and transmitting channel circuits enables a portable station to utilize all the communication slots located within the frames of the radio communication interface of the personal handy phone system. Communication is time-multiplexed across these slots. The frames each have eight slots, four for receiving data and four for transmitting data. These eight slots enable a portable station implemented with the present invention to support communication with four cell stations simultaneously. To facilitate this type of communication, the slots located within the portable station frames operate in conjunction with the slots located within the cell station frames of the cell stations involved in the conference call thereby creating communication channels. The cell stations involved in the conference call each utilize different communication channels to communicate with the portable station implemented with the present invention.
    • 一种使个人便携式电话系统的便携式站能够支持电话会议的系统。 本发明通过授权便携式站能够与多达四个小区站进行通信同时使便携式站的用户与四个其他电信设备的用户进行通信来提供这种能力。 具体地,本发明修改了便携式电台的内部电路,以将接收信道电路的数目增加到四个,将发射信道电路增加到四个,同时增加一个数字信号处理器来混合不同的接收和传出语音信号。 接收和发送信道电路的数量的增加使得便携式站能够利用位于个人手持电话系统的无线电通信接口的帧内的所有通信时隙。 通信在这些插槽之间被时分复用。 每个帧具有八个时隙,四个用于接收数据,四个用于发送数据。 这八个时隙使得用本发明实现的便携式台同时支持与四个小区的通信。 为了促进这种类型的通信,位于便携式站帧内的时隙与位于电话会议中涉及的小区的小区站帧内的时隙一起工作,从而创建通信信道。 参与会议呼叫的小区各利用不同的通信信道与本发明实现的便携式台进行通信。
    • 9. 发明授权
    • Digital to analog converter offset autocalibration system in a digital
synthesizer integrated circuit
    • 数模转换器偏移自动校准系统在数字合成器集成电路中
    • US5894280A
    • 1999-04-13
    • US794878
    • 1997-02-05
    • Bernard GinettiPhilippe Gaglione
    • Bernard GinettiPhilippe Gaglione
    • H03M1/10H03M1/66H03M1/06
    • H03M1/1019H03M1/66
    • A digital to analog converter (DAC) offset autocalibration system in a digital synthesizer integrated circuit. The present invention includes a DAC coupled to a filter. The input of the DAC accepts digital values for conversion to an analog signal. The output of the DAC is coupled to the input of the filter. The filter smoothes the analog signal received from the DAC. A switch is coupled to the filter output to receive the analog signal. A comparator is coupled to the switch. The input of the comparator receives the analog signal from the filter output via the switch. An autocalibration control circuit is coupled to the output of the comparator, to the switch, and to the DAC. The autocalibration control circuit is adapted to input a value to the DAC in order to determine an offset correction from the output of the comparator and adjust the analog signal using the offset correction.
    • 数字合成器集成电路中的数模转换器(DAC)偏移自动校准系统。 本发明包括耦合到滤波器的DAC。 DAC的输入接受转换为模拟信号的数字值。 DAC的输出端耦合到滤波器的输入端。 滤波器平滑从DAC接收的模拟信号。 开关耦合到滤波器输出端以接收模拟信号。 比较器耦合到开关。 比较器的输入通过开关从滤波器输出接收模拟信号。 自动校准控制电路耦合到比较器的输出,开关和DAC。 自动校准控制电路适于向DAC输入值,以便从比较器的输出确定偏移校正,并使用偏移校正来调整模拟信号。
    • 10. 发明授权
    • Method for remotely updating software code for personal handy phone system equipment
    • 用于远程更新个人手持电话系统设备的软件代码的方法
    • US06275694B1
    • 2001-08-14
    • US08994248
    • 1997-12-19
    • Satoshi YoshidaPatrick FeyfantVarenka MartinLaurent WinckelPhilippe GaglioneOliver WeigeltDenis Archambaud
    • Satoshi YoshidaPatrick FeyfantVarenka MartinLaurent WinckelPhilippe GaglioneOliver WeigeltDenis Archambaud
    • H04M300
    • H04W8/245G06F8/65H04M1/72525H04M3/42136
    • A method for remotely updating software code of personal handy phone system equipment. The present invention enables a remotely located control terminal to update stored software code within a distant portable station or cell station of the personal handy phone system. Specifically, by coupling a control terminal to the existing communication network of a personal handy phone system, the control terminal is able to communicate with portable stations and cell stations. To update the software code of a specific portable station or cell station, the control terminal first establishes communication with that particular device by sending an unique preparatory signal addressed to it. The addressed device receives the unique preparatory signal and checks the validity of it. If the addressed device determines the unique preparatory signal is valid, it transmits a unique verification signal addressed to the control terminal indicating that it is ready to receive the updated version of the software code. Once the control terminal receives the unique verification signal from the particular portable station or cell station, it proceeds to download an updated version of software code into the flash memory of that device.
    • 一种用于远程更新个人手持电话系统设备的软件代码的方法。 本发明使远程控制终端能够更新个人便携式电话系统的远程便携式站或小区内的存储的软件代码。 具体地,通过将​​控制终端与个人手持电话系统的现有通信网络相连,控制终端能够与便携式站和小区通信。 为了更新特定便携式站或小区站的软件代码,控制终端首先通过发送寻址到其的唯一预备信号来建立与该特定设备的通信。 寻址的设备接收唯一的准备信号并检查其有效性。 如果所寻址的设备确定唯一的准备信号是有效的,则它发送寻址到控制终端的唯一的验证信号,指示其准备好接收软件代码的更新版本。 一旦控制终端从特定的便携式站或小区站接收到唯一的验证信号,则它继续将软件代码的更新版本下载到该设备的闪速存储器中。