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    • 2. 发明授权
    • Wireless local loop automatic delay setting
    • 无线本地环路自动延时设置
    • US06233257B1
    • 2001-05-15
    • US08943324
    • 1997-10-03
    • Satoshi YoshidaPatrick FeyfantVarenka MartinLaurent WinckelPhilippe GaglioneOliver WeigeltDenis Archambaud
    • Satoshi YoshidaPatrick FeyfantVarenka MartinLaurent WinckelPhilippe GaglioneOliver WeigeltDenis Archambaud
    • H04J306
    • H04J3/0626H04W56/0075H04W56/009
    • A method and system that enables an automatic delay setting within a wireless local loop system. The present invention determines the transmission distance time delay existing between a base station and a personal station by employing the communication interface that is utilized between them. The main reason for determining the transmission time delay caused by large transmission distances (e.g., over 300 meters) existing between base stations and personal stations is to compensate for it. Once the transmission distance time delay is known, the personal station utilizes that value to compensate for it. Specifically, the present invention directs a base station to transmit a control signal to a personal station. The personal station receives the control signal and transmits a signal to the base station. The base station determines if it started to receive the signal from the personal station later than it expected the signal to arrive, assuming close proximity of the two stations. If the signal arrived when it was expected to arrive, the base station discontinues determining the transmission distance time delay. If the signal arrived later than expected, the base station calculates the time difference between the expected arrival time and the actual arrival of the signal. The time difference is equivalent to the transmission distance time delay. Once the time difference is determined, the base station then transmits it to the personal station. The personal station stores the transmission distance time delay value enabling it to compensate for it.
    • 一种能够在无线本地环路系统内实现自动延迟设置的方法和系统。 本发明通过采用在它们之间利用的通信接口来确定存在于基站和个人站之间的传输距离时间延迟。 确定由基站和个人站之间存在的大传输距离(例如,超过300米)引起的传输时间延迟的主要原因是为了补偿它。 一旦知道传输距离时间延迟,个人站利用该值来补偿它。 具体地,本发明指示基站向个人站发送控制信号。 个人站接收控制信号并向基站发送信号。 假设靠近两个台站,基站确定是否开始接收来自个人站的信号晚于预期信号到达的信号。 如果信号在预期到达时到达,则基站中断确定传输距离时间延迟。 如果信号到达迟于预期,则基站计算预期到达时间和信号的实际到达之间的时间差。 时间差等于传输距离时间延迟。 一旦确定了时差,基站然后将其发送到个人站。 个人站存储传输距离时间延迟值,使其能够进行补偿。
    • 4. 发明授权
    • Extended common access channel low power usage within the personal handy
phone system
    • 扩展通用接入通道个人便携式电话系统内的低功耗
    • US6035222A
    • 2000-03-07
    • US21735
    • 1998-02-11
    • Satoshi YoshidaLaurent WinckelPatrick FeyfantDenis ArchambaudOliver WeigeltPhillipe GaglioneVarenka Martin
    • Satoshi YoshidaLaurent WinckelPatrick FeyfantDenis ArchambaudOliver WeigeltPhillipe GaglioneVarenka Martin
    • H04W28/04H04W48/16H04W52/02H04B1/38H04Q7/00
    • H04W52/0229H04W48/16
    • A method and system that enables a portable station within the personal handy phone system (PHS) to utilize the preamble field of the communication interface to contain extended common access channel field information while optimizing power consumption. The present invention can operate within a cell station of the PHS. The present invention empowers a portable station to identify the type of data contained within the preamble field. A predetermined number of data bits are extracted from the beginning of the preamble field of an incoming data frame received by a portable station. The present invention determines if the extracted data bits are identical to a predetermined data bit pattern. If the extracted data bits are identical to the data bit pattern, the portable station is directed to treat the data contained within the preamble field as the standardized preamble of the PHS by not storing it within memory and not performing a cyclic redundancy check (CRC) on it. If the data bits are not identical to the data bit pattern, the portable station treats the data contained within the preamble field as extended common access channel data by storing it within memory and performing a CRC on it. By enabling a portable station to identify the data within the preamble field, data storage and CRC are not performed on preamble data resulting in conservation of portable station power. Optimizing power consumption within a portable station is critical because it operates under limited battery power.
    • 一种方法和系统,其使个人手持电话系统(PHS)内的便携式站能够利用通信接口的前导字段来容纳扩展的公共接入信道字段信息,同时优化功耗。 本发明可以在PHS的小区站内工作。 本发明使便携式站能够识别包含在前同步码字段内的数据的类型。 从便携式终端接收的输入数据帧的前导字段的开头提取预定数量的数据比特。 本发明确定所提取的数据位是否与预定数据位模式相同。 如果所提取的数据比特与数据比特模式相同,则便携式终端被指示通过不将它存储在存储器中而不执行循环冗余校验(CRC)来将包含在前同步码字段内的数据视为PHS的标准化前同步码, 在上面。 如果数据比特与数据比特模式不相同,则便携式终端将包含在前同步码字段中的数据作为扩展的公共接入信道数据,将其存储在存储器中并在其上执行CRC。 通过使便携式站能够识别前导字段中的数据,不对前导码数据执行数据存储和CRC,导致便携式站功率的保护。 在便携式电台内优化功耗至关重要,因为它在有限的电池电量下运行。
    • 5. 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。
    • 6. 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。
    • 10. 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。