公开(公告)号：US20070230416A1

公开(公告)日：2007-10-04

申请号：US11395008

申请日：2006-03-31

申请人： John Harris ,  Hao Bi ,  Fan Wang ,  Michael Wang

发明人： John Harris ,  Hao Bi ,  Fan Wang ,  Michael Wang

IPC分类号： H04Q7/24

CPC分类号： H04L1/1867

摘要： A wireless communication system where voice frames are transmitted in sub-frames, wherein multiple sub-frames constitute a single radio frame, at least one of the sub-frames not having a negative acknowledgement associated therewith, including at a radio access network (120), decoding a voice frame in sub-frame of a received radio frame, the sub-frame having a negative acknowledgement associated therewith, transmitting, from the radio access network, the voice frame in a sub-frame of an other radio frame, the sub-frame of the other radio frame not having an negative acknowledgement associated therewith.

摘要翻译： 一种无线通信系统，其中在子帧中发送语音帧，其中多个子帧构成单个无线电帧，所述子帧中的至少一个没有与其相关联的否定确认，包括在无线电接入网络（120）处， 在接收到的无线帧的子帧中对语音帧进行解码，该子帧具有与之相关的否定确认，从无线接入网发送另一无线帧的子帧中的语音帧，子帧 - 其他无线电帧的帧不具有与其相关联的否定确认。

公开(公告)号：US20070140385A1

公开(公告)日：2007-06-21

申请号：US11303487

申请日：2005-12-15

申请人： Krishna Mukkavilli ,  Michael Wang ,  Raghuraman Krishnamoorthi

发明人： Krishna Mukkavilli ,  Michael Wang ,  Raghuraman Krishnamoorthi

IPC分类号： H04L27/06

CPC分类号： H04L27/2662 ,  H04L25/0202 ,  H04L27/2686

摘要： Apparatus and methods for use in a wireless communication system are disclosed for determining a timing position for channel activity in order to resolve timing ambiguity. A disclosed apparatus includes a processor that determines when channel activity occurs in at least one of an early or a late arrival position in a communication channel estimate and unwraps the channel activity in either the early arrival position or the late arrival position to a corresponding late or early arrival unwrapped channel activity position in the wireless channel estimate. The processor correlates symbol data in the communication signal corresponding to both the channel activity and the unwrapped channel activity to symbol data of the main channel activity. The processor determines whether a correct timing position of the channel activity is one of the early or late arrival positions based on the correlations, thus resolving timing ambiguity. Complementary methods are also disclosed.

摘要翻译： 公开了用于无线通信系统中的装置和方法，用于确定信道活动的定时位置，以便解决定时模糊。 所公开的装置包括处理器，其确定在通信信道估计中的早期或迟到到达位置中的至少一个中何时发生信道活动，并且将早期到达位置或延迟到达位置中的信道活动解包到相应的延迟或 在无线信道估计中提前到达解开的频道活动位置。 处理器将对应于信道活动和解开的信道活动的通信信号中的符号数据与主信道活动的符号数据相关联。 处理器基于相关性确定信道活动的正确定时位置是早期还是迟到位置之一，从而解决定时模糊度。 还公开了互补方法。

公开(公告)号：US20070082696A1

公开(公告)日：2007-04-12

申请号：US11535940

申请日：2006-09-27

申请人： Michael Wang

发明人： Michael Wang

IPC分类号： H04M1/00

CPC分类号： H04L27/2613 ,  H03M13/271 ,  H03M13/2771 ,  H04L1/0041 ,  H04L1/0066 ,  H04L1/0069 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0083 ,  H04L25/0226 ,  H04L27/2626

摘要： Methods and apparatus for constructing a pilot symbol for a communication frame transmitted in a wireless communication system, such as an OFDM system, are disclosed. In particular, the methods and apparatus generate at least one pseudo-random noise sequence having at least a predetermined length, where the at least one pseudo-random noise sequence represents a system configuration of a wireless system. A time domain symbol sequence is modulated with the at least one pseudo-random noise sequence to create a timing acquisition pilot symbol. The modulated acquisition pilot symbol is further masked to a prescribed frequency profile and placed in a frame for wireless transmission. Accordingly, different system configurations can be communicated from a transmitter to a receiver with the acquisition pilot symbol modulated with correspondingly different pseudo-random noise sequences, while affording low complexity required to process the acquisition pilot symbol and a minimum peak to average power ratio when using QPSK modulation.

摘要翻译： 公开了在诸如OFDM系统的无线通信系统中发送的用于构建通信帧的导频符号的方法和装置。 特别地，所述方法和装置产生至少一个具有至少预定长度的伪随机噪声序列，其中至少一个伪随机噪声序列表示无线系统的系统配置。 利用至少一个伪随机噪声序列调制时域符号序列以产生定时获取导频符号。 调制获取导频符号被进一步屏蔽到规定的频率分布，并被放置在用于无线传输的帧中。 因此，不同的系统配置可以从发射机传送到接收机，其中采集导频符号用对应的不同的伪随机噪声序列进行调制，同时提供处理采集导频符号所需的低复杂度和使用时的最小峰均功率比 QPSK调制。

公开(公告)号：US20070081484A1

公开(公告)日：2007-04-12

申请号：US11535947

申请日：2006-09-27

申请人： Michael Wang

发明人： Michael Wang

IPC分类号： H04B7/14

CPC分类号： H04L27/2613 ,  H03M13/271 ,  H03M13/2771 ,  H04L1/0041 ,  H04L1/0066 ,  H04L1/0069 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0083 ,  H04L27/2602

摘要： Method and apparatus for transmitting a wireless communication signal frame, such as an OFDM superframe. In particular, the disclosed methods and apparatus transmit a first pilot symbol in the signal frame where the symbol serves to communicate coarse timing information to a receiver. A second pilot symbol is subsequently transmitted to communicate information including network identification information concerning a wide-area network. Next, overhead information (OIS) concerning the wide-area network is then transmitted and then a third pilot symbol is transmitted to communicate information including network identification information concerning a local-area network to a receiver. By transmitting the third pilot symbol concerning the local-area network after the wide-area OIS, a receiver is allowed to acquire wide-area network timing and information and then subsequently acquire more updated local-area network timing and information and more efficiently utilize processing resources.

摘要翻译： 用于发送诸如OFDM超帧的无线通信信号帧的方法和装置。 特别地，所公开的方法和装置在信号帧中发送第一导频符号，其中符号用于向接收机传送粗略定时信息。 随后发送第二导频符号以传送包括关于广域网的网络识别信息的信息。 接下来，发送关于广域网的开销信息（OIS），然后发送第三导频符号以将包括关于局域网的网络标识信息的信息传送到接收机。 通过在广域OIS之后发送关于局域网的第三导频符号，允许接收机获取广域网定时和信息，然后随后获取更新的局域网时间和信息，并更有效地利用处理 资源。

公开(公告)号：US20060178852A1

公开(公告)日：2006-08-10

申请号：US11052491

申请日：2005-02-04

申请人： Charles Johns ,  Michael Wang

发明人： Charles Johns ,  Michael Wang

IPC分类号： G01K1/00

CPC分类号： G01K7/015 ,  G01K2219/00

摘要： A method, computer program product, and apparatus for obtaining a digital temperature reading from within an integrated circuit. In a preferred embodiment, a temperature-stable constant current source is applied to a tapped series of resistors to obtain a set of stable reference voltages. These reference voltages are fed into an analog multiplexer, which selects a single reference voltage to output to a comparator. A PTAT (proportional to absolute temperature) voltage signal is also applied to the comparator, so that the output of the comparator indicates a comparison between the selected reference voltage and the PTAT signal. A digital temperature reading is obtained by using finite-state control to apply test values to the multiplexer in order to search for a value corresponding to a reference voltage that is closest to the value of the PTAT signal. The value that is found is a digital representation of the temperature.

摘要翻译： 一种用于从集成电路内获得数字温度读数的方法，计算机程序产品和装置。 在优选实施例中，将温度稳定的恒流源施加到抽头的一系列电阻器以获得一组稳定的参​​考电压。 这些参考电压被馈送到模拟多路复用器中，其选择单个参考电压以输出到比较器。 比较器也施加PTAT（与绝对温度成比例）的电压信号，使得比较器的输出指示所选择的参考电压和PTAT信号之间的比较。 通过使用有限状态控制将测试值应用于多路复用器来获得数字温度读数，以便搜索与最接近PTAT信号值的参考电压相对应的值。 找到的值是温度的数字表示。

公开(公告)号：US20060133381A1

公开(公告)日：2006-06-22

申请号：US11021051

申请日：2004-12-22

申请人： Michael Wang

发明人： Michael Wang

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L5/0058

摘要： The subject invention selects a starting sub-carrier frequency group for a pilot staggering sequence to facilitate in mitigating the possibility of pilot signal collisions. In one embodiment, a randomized starting sub-carrier frequency group of the pilot is utilized in a first orthogonal frequency division multiplexing (OFDM) symbol of a frame. In another embodiment, a starting pilot sub-carrier frequency group number is determined by utilizing a random number generator such as, for example, a Pseudo-Noise (PN) sequence generator, seeded by a network identification (ID) number. In this manner, the starting sub-carrier frequency group is specific to that particular network. The subject invention also provides a more scalable system through the trading of system bandwidth for coverage.

摘要翻译： 本发明选择用于导频交错序列的起始子载波频率组以便于减轻导频信号冲突的可能性。 在一个实施例中，在帧的第一正交频分复用（OFDM）符号中使用导频的随机起始子载波频率组。 在另一个实施例中，通过利用随机数生成器（例如伪噪声（PN）序列发生器）来确定起始导频副载波频率组号，该编码发生器由网络标识（ID）号码接收。 以这种方式，起始子载波频率组是特定于该特定网络的。 本发明还通过用于覆盖的系统带宽的交易来提供更可扩展的系统。

公开(公告)号：US20060123261A1

公开(公告)日：2006-06-08

申请号：US11002551

申请日：2004-12-02

申请人： Mack Riley ,  Daniel Stasiak ,  Michael Wang ,  Stephen Weitzel

发明人： Mack Riley ,  Daniel Stasiak ,  Michael Wang ,  Stephen Weitzel

IPC分类号： G06F9/00

CPC分类号： G06F1/3203 ,  G06F1/3237 ,  Y02D10/128

摘要： An apparatus, a method, and a computer program are provided to disable clock distribution. In microprocessors, the clock distribution system can account for a substantial amount of power consumption. Disabling the clock distribution system, however, has been difficult because of the usual requirement for a separate clock for control logic. Therefore, combinational logic can be employed to disrupt the clock distribution and allow a processor to be awakened without a need for a separate clock.

摘要翻译： 提供了一种装置，方法和计算机程序来禁止时钟分配。 在微处理器中，时钟分配系统可以占用大量的功耗。 然而，禁用时钟分配系统是困难的，因为通常需要用于控制逻辑的单独时钟。 因此，可以采用组合逻辑来中断时钟分配，并且允许处理器被唤醒而不需要单独的时钟。

公开(公告)号：US20060119445A1

公开(公告)日：2006-06-08

申请号：US11002559

申请日：2004-12-02

申请人： Mack Riley ,  Daniel Stasiak ,  Michael Wang ,  Stephen Weitzel

发明人： Mack Riley ,  Daniel Stasiak ,  Michael Wang ,  Stephen Weitzel

IPC分类号： H03B1/00

CPC分类号： G06F1/04 ,  G06F1/3203 ,  G06F1/3237 ,  H03L7/06 ,  Y02D10/126 ,  Y02D10/128 ,  Y10S331/02

摘要： An apparatus, a method, and a computer program are provided to gate a Phased Locked Loop (PLL). In microprocessors, the clock distribution system can account for a substantial amount of power consumption. Gating the PLLs, however, has been difficult because of the usual requirement for a separate clock for control logic and because the PLL requires timed to reacquire phase/frequency lock. Therefore, lock detection logic can be employed to allow the PLL to reacquire phase/frequency lock. Additionally, signals from external devices and the processor can be employed to gate the PLL and allow the processor to be awakened without a need for a separate clock.

摘要翻译： 提供了一种设备，方法和计算机程序来对相位锁定环路（PLL）进行门控。 在微处理器中，时钟分配系统可以占用大量的功耗。 然而，门控门限是困难的，因为控制逻辑需要单独的时钟，因为PLL需要定时重新获取相位/频率锁定。 因此，可以采用锁定检测逻辑来允许PLL重新获取相位/频率锁定。 此外，可以采用来自外部设备和处理器的信号来门控PLL，并且允许处理器被唤醒而无需单独的时钟。

公开(公告)号：US20060097757A1

公开(公告)日：2006-05-11

申请号：US10982019

申请日：2004-11-05

申请人： Melia Gordon ,  Charles Johns ,  Hiroki Kihara ,  Iwao Takiguchi ,  Tetsuji Tamura ,  Michael Wang ,  Kazuaki Yazawa ,  Munehiro Yoshida

发明人： Melia Gordon ,  Charles Johns ,  Hiroki Kihara ,  Iwao Takiguchi ,  Tetsuji Tamura ,  Michael Wang ,  Kazuaki Yazawa ,  Munehiro Yoshida

IPC分类号： H03K5/153

CPC分类号： G01K15/00 ,  G01R31/2856 ,  G01R31/2874 ,  G01R31/31704 ,  G01R31/319 ,  G01R31/31908

摘要： An integrated circuit die is disclosed including a temperature detection circuit and a memory configured to store calibration data. The temperature detection circuit is operatively coupled to the memory, and receives an input signal. The temperature detection circuit is configured to produce an output signal dependent upon the input signal and indicative of whether a temperature of the integrated circuit die is greater than a selected temperature. During a normal operating mode of the integrated circuit die the input signal comprises the calibration data. A system and methods for calibrating the temperature detection circuit are also described.

公开(公告)号：US20060053348A1

公开(公告)日：2006-03-09

申请号：US10937689

申请日：2004-09-09

申请人： Nathan Chelstrom ,  Mack Riley ,  Michael Wang ,  Stephen Weitzel

发明人： Nathan Chelstrom ,  Mack Riley ,  Michael Wang ,  Stephen Weitzel

IPC分类号： G06F11/00

CPC分类号： G06F1/3203 ,  G06F1/08 ,  G06F1/324 ,  Y02D10/126

摘要： The present invention provides for reducing current spikes in a circuit when changing clocking frequencies. A first frequency is applied to a clock distribution network. A final frequency is selected. The first frequency is applied to a logic element over the clock distribution network. A hold signal is applied to the logic element. The clock rate of the clock distribution network is changed from the first frequency to the final frequency. The hold signal is unapplied to the logic element.