公开(公告)号：WO2007136447A3

公开(公告)日：2008-11-20

申请号：PCT/US2007006386

申请日：2007-03-14

Applicant: SIGMATEL INC

Inventor： BAKER DAVID CURETON ,  SANDERS RICHARD

IPC: G06F11/10 ,  G06F12/16

CPC classification number: H04L1/0052 ,  H04L49/90

Abstract: A non-volatile memory has a first payload data region and a first redundant memory area associated with the first payload data region. The first redundant memory area has a first portion, a second portion and a third portion. The first portion includes first payload error correction code (ECC) data associated with the first payload data region. The second portion includes first metadata associated with the first payload data region. The third portion includes first metadata ECC data associated with the first metadata.

Abstract translation: 非易失性存储器具有与第一有效载荷数据区域相关联的第一有效载荷数据区域和第一冗余存储器区域。 第一冗余存储区具有第一部分，第二部分和第三部分。 第一部分包括与第一有效载荷数据区域相关联的第一有效负载纠错码（ECC）数据。 第二部分包括与第一有效载荷数据区域相关联的第一元数据。 第三部分包括与第一元数据相关联的第一元数据ECC数据。

公开(公告)号：WO2007136447A2

公开(公告)日：2007-11-29

申请号：PCT/US2007/006386

申请日：2007-03-14

Applicant: SIGMATEL, INC.

Inventor： BAKER, David, Cureton ,  SANDERS, Richard

IPC: H04L12/56

CPC classification number: H04L1/0052 ,  H04L49/90

Abstract: A non-volatile memory has a first payload data region and a first redundant memory area associated with the first payload data region. The first redundant memory area has a first portion, a second portion and a third portion. The first portion includes first payload error correction code (ECC) data associated with the first payload data region. The second portion includes first metadata associated with the first payload data region. The third portion includes first metadata ECC data associated with the first metadata.

Abstract translation: 非易失性存储器具有与第一有效载荷数据区域相关联的第一有效载荷数据区域和第一冗余存储器区域。 第一冗余存储区具有第一部分，第二部分和第三部分。 第一部分包括与第一有效载荷数据区域相关联的第一有效负载纠错码（ECC）数据。 第二部分包括与第一有效载荷数据区域相关联的第一元数据。 第三部分包括与第一元数据相关联的第一元数据ECC数据。

公开(公告)号：WO2007001376A3

公开(公告)日：2007-09-07

申请号：PCT/US2005033572

申请日：2005-09-20

Applicant: SIGMATEL INC

Inventor： BAKER DAVID CURETON

IPC: H04L9/32 ,  G06F12/14

CPC classification number: G06F12/1433 ,  G06F2212/2022

Abstract: The disclosure includes a system (100) and method of using a processor and protected memory. In a particular embodiment, the system includes a processor, a volatile memory (104) accessible to the processor, and a first nonvolatile memory (106) accessible to the processor. The first nonvolatile memory includes a first portion of memory that is protected and is readable when a shied bit indicates an unshielded mode of operation, but is unreadable when the shield bit indicates a shielded mode of operation and a second portion of memory that is unprotected and that is readable regardless of the value of the shield bit (124). The system includes a second nonvolatile memory (108) including data to be transferred to the volatile memory.

Abstract translation: 本公开包括系统（100）和使用处理器和受保护存储器的方法。 在特定实施例中，系统包括处理器，可由处理器访问的易失性存储器（104）和可由处理器访问的第一非易失性存储器（106）。 第一非易失性存储器包括受保护的第一部分存储器，并且当屏蔽位指示非屏蔽操作模式时可读取，并且当屏蔽位指示屏蔽操作模式和不受保护的存储器的第二部分时是不可读的，并且 无论屏蔽位（124）的值如何，都是可读的。 该系统包括包括要传送到易失性存储器的数据的第二非易失性存储器（108）。

公开(公告)号：WO2007040769A3

公开(公告)日：2007-06-07

申请号：PCT/US2006029710

申请日：2006-07-31

Applicant: SIGMATEL INC

Inventor： ALDERSON JEFFREY DONALD

IPC: H04R3/00 ,  H04R9/06

CPC classification number: H04N5/46 ,  H04N5/60 ,  H04N21/42607 ,  H04N21/4383 ,  H04N21/8106

Abstract: A system and method for detecting a mode of an audio signal is disclosed. The system includes an integrated circuit with an input to receive a signal and an audio processor coupled to the input. The audio processor includes an audio standard detection module, wherein the audio standard detection module detects a characteristic of the received signal that identifies a television audio standard by measuring the energy level of a plurality of different frequency bands of the received signal.

Abstract translation: 公开了一种用于检测音频信号的模式的系统和方法。 该系统包括具有用于接收信号的输入和耦合到输入的音频处理器的集成电路。 音频处理器包括音频标准检测模块，其中音频标准检测模块通过测量接收信号的多个不同频带的能量水平来检测识别电视音频标准的接收信号的特性。

公开(公告)号：WO2007055706A2

公开(公告)日：2007-05-18

申请号：PCT/US2005/043172

申请日：2005-11-30

Applicant: SIGMATEL, INC.

Inventor： HENSON, Matthew ,  BAKER, David, Cureton

IPC: G06F13/28

CPC classification number: G06F13/28

Abstract: A system and method for providing direct memory access is disclosed. In a particular embodiment, a direct memory access module is disclosed that includes a memory, a first interface coupled to a processor, and a second interface coupled to a peripheral module. A first instruction received from the first interface is stored in the memory. The first instruction includes a number of programmed input/output words to be provided to the peripheral module via the second interface. The direct memory access module also includes an instruction execution unit to process the first instruction.

Abstract translation: 公开了一种用于提供直接存储器访问的系统和方法。 在特定实施例中，公开了一种直接存储器访问模块，其包括存储器，耦合到处理器的第一接口和耦合到外围模块的第二接口。 从第一接口接收的第一指令被存储在存储器中。 第一指令包括经由第二接口提供给外围模块的多个已编程的输入/输出字。 直接存储器访问模块还包括处理第一指令的指令执行单元。

公开(公告)号：WO2007030239A2

公开(公告)日：2007-03-15

申请号：PCT/US2006030109

申请日：2006-08-02

Applicant: SIGMATEL INC

Inventor： HENDRIX JON DAVID ,  RAGAN THOMAS GLEN ,  MAY MICHAEL R

IPC: H04B1/10 ,  H04B1/06 ,  H04B7/00

CPC classification number: H03G3/3052 ,  H04B17/20 ,  H04B17/318

Abstract: A radio receiver, optionally used in conjunction with a handheld audio system, includes a radio stage for processing a received radio signal into an audio signal. An audio stage produces an audio output, based on the audio signal. An overload monitor detects an overload condition in the radio stage and generates an overload signal in response to the detected overload condition. A controller controls the audio output in response to the overload signal.

Abstract translation: 可选地与手持音频系统一起使用的无线电接收机包括用于将接收的无线电信号处理成音频信号的无线电台。 音频级基于音频信号产生音频输出。 过载监视器检测无线电级中的过载状况，并根据检测到的过载条件产生过载信号。 控制器响应于过载信号控制音频输出。

公开(公告)号：WO2007005051A3

公开(公告)日：2007-09-20

申请号：PCT/US2005043570

申请日：2005-12-02

Applicant: SIGMATEL INC

Inventor： HENSON MATTHEW

IPC: G06F1/08 ,  G06F13/40

CPC classification number: G06F1/3203 ,  G06F1/324 ,  Y02D10/126

Abstract: A method of controlling a clock frequency is disclosed and includes monitoring a plurality of master devices that are coupled to a bus within a system. The method also includes receiving an input from at least one of the plurality of master devices. The input can be a request an increase to the clock frequency of the bus. Further, the method includes selectively increasing the clock frequency of the bus in response to the request.

Abstract translation: 公开了一种控制时钟频率的方法，并且包括监视耦合到系统内的总线的多个主设备。 该方法还包括接收来自多个主设备中的至少一个的输入。 输入可以是增加总线时钟频率的请求。 此外，该方法包括响应于该请求选择性地增加总线的时钟频率。

公开(公告)号：WO2007061462A2

公开(公告)日：2007-05-31

申请号：PCT/US2006030209

申请日：2006-08-02

Applicant: SIGMATEL INC

Inventor： MAY MICHAEL R ,  LOWE ERICH

IPC: H04J4/00

CPC classification number: H04B15/02 ,  H04B2215/064

Abstract: A digital clock generator includes a base clock generator for generating a base clock signal at a variable base clock frequency in response to a control signal. A digital clock controller generates a digital clock signal having a substantially constant number of digital clock cycles over a predetermined period.

Abstract translation: 数字时钟发生器包括基本时钟发生器，用于响应于控制信号而以可变的基本时钟频率产生基本时钟信号。 数字时钟控制器在预定时间段内产生具有基本上恒定数量的时钟周期数量的数字时钟信号。

公开(公告)号：WO2007040770A2

公开(公告)日：2007-04-12

申请号：PCT/US2006/029717

申请日：2006-07-31

Applicant: SIGMATEL, INC.

Inventor： ALDERSON, Jeffrey Donald

IPC: G06F17/00

CPC classification number: G10L19/26

Abstract: A system and method for decoding a received television signal is disclosed. The system includes an input to receive a digital audio signal and a digital variable deemphasis module to modify the amplitude of the digital audio signal based on a plurality of variable coefficients. The system also includes an exponential digital root mean square (ERMS) detector to provide level detection of the digital audio signal. The plurality of variable coefficients of the digital variable deemphasis module are digitally computed based on an output of the digital ERMS detector.

Abstract translation: 公开了一种用于解码接收到的电视信号的系统和方法。 该系统包括接收数字音频信号的输入和数字变量去加重模块，以基于多个可变系数修改数字音频信号的幅度。 该系统还包括指数数字均方根（ERMS）检测器，以提供数字音频信号的电平检测。 基于数字ERMS检测器的输出数字地计算数字变量去加重模块的多个可变系数。

公开(公告)号：WO2007005051A2

公开(公告)日：2007-01-11

申请号：PCT/US2005/043570

申请日：2005-12-02

Applicant: SIGMATEL, INC.

Inventor： HENSON, Matthew

IPC: G06F1/26

CPC classification number: G06F1/3203 ,  G06F1/324 ,  Y02D10/126

Abstract: A method of controlling a clock frequency is disclosed and includes monitoring a plurality of master devices that are coupled to a bus within a system. The method also includes receiving an input from at least one of the plurality of master devices. The input can be a request an increase to the clock frequency of the bus. Further, the method includes selectively increasing the clock frequency of the bus in response to the request.

Abstract translation: 公开了一种控制时钟频率的方法，并且该方法包括监测耦合到系统内的总线的多个主设备。 该方法还包括从多个主设备中的至少一个接收输入。 输入可以是增加总线时钟频率的请求。 此外，该方法包括响应于该请求选择性地增加总线的时钟频率。