Battery saving method and communication device using prediction of user
location, movement and actions
    41.
    发明授权
    Battery saving method and communication device using prediction of user location, movement and actions 失效
    电池节省方法和通信装置使用预测用户位置,运动和动作

    公开(公告)号:US5799256A

    公开(公告)日:1998-08-25

    申请号:US678432

    申请日:1996-07-17

    Abstract: A method and apparatus reduces power consumption in a portable communication device (104) by predicting a user's location, movement and actions. The portable communication device (104) is powered by a battery (120) and includes a battery control (122) for decoupling portions of the communication device (104) from the battery. Historical records of control channel and call activity are maintained in memory (117) at the communication device (104). This data is used to predict calls. This permits the communication device (104) to conserve power in the battery (120) when no call activity is likely. The stored data is also used to predict what control channels should be scanned to search for a nearby base station (102). This permits the communication device (104) to scan a reduced number of control channels and reduces the time duration necessary for powering up the receiver (108) of the communication device (104).

    Abstract translation: 方法和装置通过预测用户的位置,移动和动作来降低便携式通信设备(104)中的功耗。 便携式通信设备(104)由电池(120)供电,并且包括用于将通信设备(104)的部分与电池分离的电池控制(122)。 控制信道和呼叫活动的历史记录被保存在通信设备(104)的存储器(117)中。 该数据用于预测呼叫。 当不需要呼叫活动时,这允许通信设备(104)节省电池(120)中的电力。 存储的数据还用于预测什么控制信道应被扫描以搜索附近的基站(102)。 这允许通信设备(104)扫描减少数量的控制信道并减少为通信设备(104)的接收机(108)通电所需的持续时间。

    Method and apparatus for error mitigating a received communication signal
    42.
    发明授权
    Method and apparatus for error mitigating a received communication signal 失效
    用于错误减轻接收的通信信号的方法和装置

    公开(公告)号:US5799039A

    公开(公告)日:1998-08-25

    申请号:US450454

    申请日:1995-05-25

    CPC classification number: H04L1/20 H04B14/068 H04L1/0059 H04L1/0061

    Abstract: A method and apparatus for mitigating error in a received communications signal includes an error mitigator (35) of a communication unit (12) which receives and performs mitigation based on an error indication. In a first embodiment the error indication is a phase or non-used data symbol indicating error in ADPCM data, and mitigation includes changing certain nibble values to different predetermined values. In a second embodiment the error indication may include other parameters, e.g., a CRC frame error indicator, and an error estimator (34) determines a level of corruption in the ADPCM data. The error mitigator (35) applies a predetermined set of replacement values based on the indicated level of corruption and the mitigated data is subsequently decoded in an ADPCM decoder (26).

    Abstract translation: 用于减轻接收到的通信信号中的错误的方法和装置包括通信单元(12)的误差缓冲器(35),其基于错误指示接收和执行缓解。 在第一实施例中,误差指示是指示ADPCM数据中的错误的相位或未使用的数据符号,并且缓解包括将某些半字节值改变为不同的预定值。 在第二实施例中,错误指示可以包括其他参数,例如CRC帧错误指示符,并且错误估计器(34)确定ADPCM数据中的损坏程度。 错误缓冲器(35)基于指示的损坏级别应用预定的一组替换值,并且随后在ADPCM解码器(26)中解码缓解的数据。

    Oversampling correlator with virtual clock phase for a
telecommunications device
    43.
    发明授权
    Oversampling correlator with virtual clock phase for a telecommunications device 失效
    用于电信设备的虚拟时钟相位的过采样相关器

    公开(公告)号:US5699389A

    公开(公告)日:1997-12-16

    申请号:US534914

    申请日:1995-09-28

    CPC classification number: H04L7/042

    Abstract: A correlation circuit (200) for detecting a correct phase for data bits in a received data stream includes a clock generator (204) configured to generate a plurality of clock signals, each clock signal having a predetermined unique clock phase. A plurality of data correlators (210, 212, 214, 216, 218, 220) generate respective pass indications when respective unique clock phases are adequate for accurate detection of the data bits in the data stream. In response to the pass indications, a control circuit (206) provides a clock signal for clocking the data. The control circuit (206) includes a delay block (278) and decision logic (270) for selectively delaying one clock phase of the generated plurality of clock phases. The control circuit may provide one of the generated clock phases or a delayed clock phase for clocking the received data.

    Abstract translation: 用于检测接收数据流中的数据位的正确相位的相关电路(200)包括被配置为产生多个时钟信号的时钟发生器(204),每个时钟信号具有预定的唯一时钟相位。 当各个独特的时钟相位足以精确地检测数据流中的数据位时,多个数据相关器(210,212,214,216,218,220)产生相应的通过指示。 响应于通过指示,控制电路(206)提供用于计时数据的时钟信号。 控制电路(206)包括用于选择性地延迟所生成的多个时钟相位的一个时钟相位的延迟块(278)和判定逻辑(270)。 控制电路可以提供生成的时钟相位中的一个或用于对所接收的数据进行计时的延迟的时钟相位。

    Nested digital phase lock loop
    44.
    发明授权
    Nested digital phase lock loop 失效
    嵌套数字锁相环

    公开(公告)号:US5463351A

    公开(公告)日:1995-10-31

    申请号:US314830

    申请日:1994-09-29

    CPC classification number: H03L7/07 H03L7/0991 H04L7/0004 H04L7/033

    Abstract: A nested digital phase lock loop (DPLL) circuit (400) provides center bit sampling for incoming recovered data (406). Included in the nested DPLL circuit (400) are a narrow bandwidth DPLL (402) and a wide bandwidth DPLL (404) which generate first (410) and second (428) recovered clock signals respectively. Initially the first recovered clock signal (410) is used to clock in the recovered data (406) until the narrowband DPLL (402) is stabilized. Once the narrowband DPLL (402) is stabilized, the second recovered clock signal (428) generated from the wideband DPLL (404) is switched in by a multiplexer (424). If for any reason the center bit sampled data becomes corrupted, a RESET occurs in the wideband loop (404) to zero out the phase shift of the second recovered clock signal (428) to match that of the narrow loop. Thus, when a RESET occurs, the wideband loop is tracking at exactly the same clock rate as the narrowband loop.

    Abstract translation: 嵌套数字锁相环(DPLL)电路(400)为输入的恢复数据(406)提供中心位采样。 包含在嵌套DPLL电路(400)中的是窄带宽DPLL(402)和宽带宽DPLL(404),其分别产生第一(410)和第二(428)恢复的时钟信号。 最初,第一恢复时钟信号(410)用于在恢复的数据(406)中进行时钟,直到窄带DPLL(402)稳定为止。 一旦窄带DPLL(402)稳定,则从宽带DPLL(404)产生的第二恢复时钟信号(428)被多路复用器(424)切换。 如果由于任何原因,中心位采样数据被破坏,则在宽带环路(404)中发生复位以将第二恢复时钟信号(428)的相移清零以匹配窄环路的相移。 因此,当发生RESET时,宽带环路跟窄带环路完全相同的时钟速率进行跟踪。

    Base site with remote calibration capability
    45.
    发明授权
    Base site with remote calibration capability 失效
    具有远程校准功能的基站

    公开(公告)号:US5428821A

    公开(公告)日:1995-06-27

    申请号:US722779

    申请日:1991-06-28

    CPC classification number: H04W24/00

    Abstract: A base site (200) capable of being remotely calibrated includes a receiver (206) and transmitter (210). The base site (200) further includes a controller (208) for controlling the base site and for measuring a transmission parameter related to the received transmission message from handset (120). Once an update message is received from handset (120) controller (208) updates the operating parameter of the base site (200).

    Abstract translation: 能够远程校准的基站(200)包括接收机(206)和发射机(210)。 基站(200)还包括控制器(208),用于控制基地点并用于从手机(120)测量与所接收的传输消息有关的传输参数。 一旦从手机(120)控制器(208)接收到更新消息,就更新基站(200)的操作参数。

    Seamless handoff for radio telephone systems
    46.
    发明授权
    Seamless handoff for radio telephone systems 失效
    无线电话系统的无缝切换

    公开(公告)号:US5329635A

    公开(公告)日:1994-07-12

    申请号:US881975

    申请日:1992-05-12

    CPC classification number: H04W36/30

    Abstract: A method for seamless transfer of a communication link from a first radio telephone base station to a second radio telephone base station comprises the following steps performed at the first base station: (100) receiving a communication link request from a calling portable radio unit; (102) synchronizing with the calling portable radio unit; (104) determining whether the calling radio has handoff authorization; (108) connecting received data to a second base to allow for synchronization to the calling radio; (112) measuring a first RSSI level at the first base station for the calling radio; (114) determining whether the first RSSI level for the calling radio is below a first handoff threshold; (116) determining a second RSSI level for the calling radio, as measured at the second base station, is above a second handoff threshold, if the first RSSI level for the calling portable radio unit is below the first handoff threshold, (118) determining whether the second RSSI level for the calling portable radio unit is above a second handoff threshold, and (120) alerting the second base station to pick up the communication link. The method further comprises the following step performed at a second base station: (122) commencing to transmit in the frame immediately following the last transmit frame of the first base.

    Abstract translation: 一种从第一无线电电话基站到第二无线电话基站的通信链路无缝传送的方法包括在第一基站执行的以下步骤:(100)从呼叫便携式无线电单元接收通信链路请求; (102)与所述呼叫便携式无线电单元同步; (104)确定呼叫无线电是否具有切换授权; (108)将接收的数据连接到第二基站以允许与呼叫无线电同步; (112)测量第一基站处的呼叫无线电的第一RSSI电平; (114)确定所述呼叫无线电的所述第一RSSI电平是否低于第一切换阈值; 如果所述主叫便携式无线电单元的所述第一RSSI电平低于所述第一越区切换阈值,则确定所述呼叫无线电设备的第二RSSI电平(118)在所述第二基站处测量的高于第二切换阈值(118)确定 呼叫便携式无线电单元的第二RSSI电平是否高于第二切换阈值,以及(120)警告第二基站接收通信链路。 该方法还包括在第二基站执行的以下步骤:(122)开始在紧接在第一基站的最后发送帧之后的帧中进行发送。

    Burst mode receiver control
    47.
    发明授权
    Burst mode receiver control 失效
    突发模式接收机控制

    公开(公告)号:US5325405A

    公开(公告)日:1994-06-28

    申请号:US750373

    申请日:1991-08-27

    CPC classification number: H04B1/44 H04M1/72505

    Abstract: A transceiver (100) is provided for transmitting during the transmission bursts (12) of a frame and receiving during the receiving time-slot windows (14). The transceiver (100) includes a receiver (320) for receiving a repeating radio frequency data (16) signal at any time within the receiving time-slot window (14) and for demodulating the repeating radio frequency data signal down to a baseband data signal. A data detector and clock recovery device (330) recovers the valid data (CHMP) from the baseband data signal. For controlling the receiver (320) and data detector and clock recovery device (330), a control circuit (400) modifies the receiving time-slot windows (14) to only receive and detect when valid data is expected (52).

    Abstract translation: 收发器(100)被提供用于在帧的传输脉冲串(12)期间进行传输并在接收时隙窗口(14)期间接收。 收发器(100)包括用于在接收时隙窗口(14)内的任何时间接收重复的射频数据(16)信号的接收机(320),并且将重复射频数据信号解调为基带数据信号 。 数据检测器和时钟恢复装置(330)从基带数据信号中恢复有效数据(CHMP)。 为了控制接收机(320)和数据检测器和时钟恢复装置(330),控制电路(400)修改接收时隙窗口(14),以仅在预期有效数据时接收和检测(52)。

    Transceiver having a divide-down transmit offset scheme
    48.
    发明授权
    Transceiver having a divide-down transmit offset scheme 失效
    收发器具有分频传输偏移方案

    公开(公告)号:US5276915A

    公开(公告)日:1994-01-04

    申请号:US787279

    申请日:1991-11-04

    CPC classification number: H04B1/405 H04B15/04 H04B2215/064

    Abstract: A radio communication device, having a receive mode and a transmit mode, includes a receiver portion, a transmitter portion, and multiple oscillators for providing reference waveforms for the radio communication device. During the receive mode, the receiver portion receives signals having a selected frequency, converts received signals to at least a first intermediate frequency (IF), and a transmitter oscillator produces a first waveform having a frequency equal to a multiple of the first intermediate frequency during the receive mode. During the transmit mode, the transmitter portion requires a reference waveform having an offset frequency equivalent to the first IF frequency to produce a radio frequency signal. Thus, the radio communication device also comprises a divider coupled to the transmitter oscillator for dividing the frequency of the first waveform to the required offset frequency in the transmit mode.

    Abstract translation: 具有接收模式和发送模式的无线电通信装置包括用于为无线电通信装置提供参考波形的接收机部分,发射机部分和多个振荡器。 在接收模式期间,接收机部分接收具有选定频率的信号,将接收到的信号转换成至少第一中频(IF),发射机振荡器产生频率等于第一中频倍数的第一波形 接收模式。 在发射模式期间,发射机部分需要具有等于第一IF频率的偏移频率的参考波形,以产生射频信号。 因此,无线电通信设备还包括耦合到发射机振荡器的分频器,用于在发送模式中将第一波形的频率划分为所需的偏移频率。

    Method for channel utilization in extended spectrum communication systems
    49.
    发明授权
    Method for channel utilization in extended spectrum communication systems 失效
    扩展频谱通信系统中的信道利用方法

    公开(公告)号:US5218630A

    公开(公告)日:1993-06-08

    申请号:US879436

    申请日:1992-05-06

    CPC classification number: H04W72/085 H04M1/72511

    Abstract: A base station allocates radio channels to radio telephone handsets in a second generation cordless telephone (CT2) communication systems by scanning each channel in a first band, and scanning each channel in a second band to measure an RSS level for each channel scanned. The base station scans the second band at a rate that is substantially faster than the rate at which it scans the first band. If a link request is received on a first channel within the first band, from a calling radio telephone, the base station determines whether the first channel has an RSS level above a predetermined threshold. If the RSS level of the first channel is above the threshold, and the calling radio telephone handset is capable of operating on the second band, the base station re-assigns a second channel, that is within the second band, to the calling radio telephone handset.

    Abstract translation: 基站在第二代无绳电话(CT2)通信系统中通过扫描第一频带中的每个信道来分配无线电信道到无线电话手机,并且扫描第二频带中的每个信道以测量每个被扫描的频道的RSS级别。 基站以比其扫描第一频带的速率快得多的速率扫描第二频带。 如果在第一频带内的第一频道上接收到来自呼叫无线电话的链路请求,则基站确定第一频道是否具有高于预定阈值的RSS级别。 如果第一信道的RSS级别高于阈值,并且呼叫无线电话手机能够在第二频带上操作,则基站将第二频道内的第二频道重新分配给主叫无线电话 手机

    Method and apparatus for enhanced playback of content while switching among channels of broadcast or streamed content while being received
    50.
    发明授权
    Method and apparatus for enhanced playback of content while switching among channels of broadcast or streamed content while being received 有权
    用于在接收时在广播或流式传输内容的频道间切换时增强内容播放的方法和装置

    公开(公告)号:US09154248B2

    公开(公告)日:2015-10-06

    申请号:US13982949

    申请日:2012-02-14

    Abstract: A system and method provide an enhanced listening experience for a user of a radio receiver or other device that receives broadcast or streamed content having a plurality of program channels. The method and system buffer designated channels at the receiver and, when switching among channels, play back the buffered designated channels during reception from a selected point therein depending on the channel or other criteria. When switching to a different channel during reception, a user is able to hear content in a buffered program channel with music from the start of a song, for example, whereas content in a channel with news, talk radio, or live sports is played back from live reception, even though the content segments are transmitted at different start times relative to their selected times for playback following a channel change. User controls allow navigation among buffered designated channels during reception.

    Abstract translation: 一种系统和方法为接收具有多个节目频道的广播或流式内容的无线电接收机或其他设备的用户提供增强的收听体验。 该方法和系统缓冲器在接收机处指定信道,并且在信道之间切换时,根据信道或其他标准,在接收期间从其中的选定点播放缓冲的指定信道。 当在接收期间切换到不同的频道时,用户能够听到来自歌曲开头的音乐的缓冲节目频道中的内容,而播放具有新闻,谈话广播或现场直播的频道中的内容 即使内容片段相对于其选择的时间在不同的开始时间被发送,以便在频道改变之后进行播放。 用户控制允许在接收期间在缓冲的指定通道之间导航。

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