公开(公告)号：WO2009156756A3

公开(公告)日：2011-01-06

申请号：PCT/GB2009050720

申请日：2009-06-24

Applicant: WOLFSON MICROELECTRONICS PLC ,  MAGRATH ANTHONY JAMES ,  GRAHAM CLIVE ROBERT

Inventor： MAGRATH ANTHONY JAMES ,  GRAHAM CLIVE ROBERT

IPC: G10K11/178 ,  G10L21/02 ,  G10L21/0208 ,  G10L21/0216

CPC classification number: G10K11/178 ,  G10K2210/1053 ,  G10K2210/1081 ,  G10K2210/3027 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02165 ,  H03H21/0012

Abstract: A noise cancellation system for an audio system such as a mobile phone handset, or a wireless phone headset has a first input for receiving a first audio signal from one or more microphone positioned to receive ambient noise, and a second input for receiving a second audio signal from a microphone positioned to detect the user?s speech, as well as a third input for receiving a third audio signal for example representing the speech of a person to whom the user is talking. A first noise cancellation block receives the first audio signal and generates a first noise cancellation signal, and this is combined with the third audio signal to form a first audio output signal. A second noise cancellation block receives at least a part of the first audio signal and said second audio signal and applying noise cancellation to generate a second audio output signal.

Abstract translation: 用于诸如移动电话听筒或无线电话耳机的音频系统的噪声消除系统具有用于从被定位成接收环境噪声的一个或多个麦克风接收第一音频信号的第一输入端和用于接收第二音频的第二输入端 来自定位成检测用户语音的麦克风的信号，以及用于接收第三音频信号的第三输入，例如表示用户正在说话的人的语音。 第一噪声消除块接收第一音频信号并产生第一噪声消除信号，并将其与第三音频信号组合以形成第一音频输出信号。 第二噪声消除块接收第一音频信号和所述第二音频信号的至少一部分并且施加噪声消除以产生第二音频输出信号。

公开(公告)号：WO2009101445A9

公开(公告)日：2010-05-27

申请号：PCT/GB2009050142

申请日：2009-02-13

Applicant: HAIPLIK HOLGER ,  WOLFSON MICROELECTRONICS PLC ,  GRAHAM CLIVE ROBERT

Inventor： HAIPLIK HOLGER ,  GRAHAM CLIVE ROBERT

IPC: B29B17/02 ,  C08J11/06 ,  G06F21/72

CPC classification number: G06F21/725

Abstract: A real time clock apparatus (20) comprises a counter (23) which stores a count value, the count value representing a time signal. The counter (23) may be written, for example by a host processor (not shown), such that the time signal can be set to any desired value. The real time clock apparatus (20) comprises a check register (33) that stores a check value. The content of the check register (33) (i.e. the check value) is modified each time a write operation is performed on the counter (23). For example, the content of the check register (33) can be updated by a control signal (35) each time a write operation is performed on the counter (23). The check value stored in the check register (33) is used for determining whether a write operation performed on the counter (23) is an authorised write operation or an unauthorised write operation. The check value may be incremented each time a write operation is performed, replaced with a new random number each time a write operation is performed, or a combination of both.

Abstract translation: 实时时钟装置（20）包括存储计数值的计数器（23），计数值表示时间信号。 计数器（23）可以例如由主处理器（未示出）写入，使得时间信号可以被设置为任何期望值。 实时时钟装置（20）包括存储检查值的检查寄存器（33）。 每当对计数器（23）执行写入操作时，校验寄存器（33）的内容（即校验值）被修改。 例如，每当在计数器（23）上执行写入操作时，可以通过控制信号（35）更新检查寄存器（33）的内容。 存储在检查寄存器（33）中的检查值用于确定对计数器（23）执行的写入操作是否是授权写入操作或未经授权的写入操作。 每次执行写入操作时，可以增加检查值，每当执行写入操作时，用新的随机数替换检查值，或者两者的组合。

公开(公告)号：GB2461315B

公开(公告)日：2011-09-14

申请号：GB0811863

申请日：2008-06-27

Applicant: WOLFSON MICROELECTRONICS PLC

Inventor： MAGRATH ANTHONY JAMES ,  GRAHAM CLIVE ROBERT

IPC: G10K11/178 ,  G10K11/175 ,  G10L21/02 ,  G10L21/0208 ,  G10L21/0216 ,  H03H21/00 ,  H04R3/00

Abstract: A noise cancellation system for an audio system such as a mobile phone handset, or a wireless phone headset has a first input for receiving a first audio signal from one or more microphone positioned to receive ambient noise, and a second input for receiving a second audio signal from a microphone positioned to detect the user's speech, as well as a third input for receiving a third audio signal for example representing the speech of a person to whom the user is talking. A first noise cancellation block receives the first audio signal and generates a first noise cancellation signal, and this is combined with the third audio signal to form a first audio output signal. A second noise cancellation block receives at least a part of the first audio signal and said second audio signal and applying noise cancellation to generate a second audio output signal.

公开(公告)号：GB2461315A

公开(公告)日：2009-12-30

申请号：GB0811863

申请日：2008-06-27

Applicant: WOLFSON MICROELECTRONICS PLC

Inventor： MAGRATH ANTHONY JAMES ,  GRAHAM CLIVE ROBERT

IPC: G10K11/178 ,  G10K11/175 ,  G10L21/02 ,  G10L21/0208 ,  G10L21/0216 ,  H03H21/00 ,  H04R3/00

Abstract: A noise cancellation system for an audio system such as a mobile phone handset, or wireless phone headset has a first input for receiving a first audio signal from one or more microphone positioned to receive ambient noise, and a second input for receiving a second audio signal from a microphone positioned to detect the user's speech, as well as a third input for receiving a third audio signal for example representing the speech of a person to whom the user is talking. A first noise cancellation block receives the first audio signal and generates a first noise cancellation signal, and this is combined with the third audio signal to form a first audio output signal. The second audio signal and a least a part of the first audio signal is received in a second noise cancellation block to generate a second audio output signal.

公开(公告)号：GB2457513B

公开(公告)日：2010-10-20

申请号：GB0805316

申请日：2008-03-20

Applicant: WOLFSON MICROELECTRONICS PLC

Inventor： HAIPLIK HOLGER ,  GRAHAM CLIVE ROBERT

IPC: G06F1/14 ,  G06F21/72

Abstract: A real time clock comprises a counter which stores a count value, the count value representing a time signal. The counter may be written, for example by a host processor (not shown), such that the time signal can be set to any desired value. The real time clock comprises a check register that stores a check value. The content of the check register (i.e. the check value) is modified each time a write operation is performed on the counter. For example, the content of the check register can be updated by a control signal each time a write operation is performed on the counter. The check value stored in the check register is used for determining whether a write operation performed on the counter is an authorized write operation or an unauthorized write operation. The check value may be incremented each time a write operation is performed, replaced with a new random number each time a write operation is performed, or a combination of both.

公开(公告)号：GB2457513A

公开(公告)日：2009-08-19

申请号：GB0805316

申请日：2008-03-20

Applicant: WOLFSON MICROELECTRONICS PLC

Inventor： HAIPLIK HOLGER ,  GRAHAM CLIVE ROBERT

IPC: G06F1/14 ,  G06F21/72

Abstract: A real time clock apparatus 20 comprises a counter 23 which stores a count value, the count value representing a time signal. The counter 23 may be written, for example by a host processor (not shown), such that the time signal can be set to any desired value. The real time clock apparatus 20 comprises a check register 33 that stores a check value. The content of the check register 33 (i.e. the check value) is modified each time a write operation is performed on the counter 23. For example, the content of the check register 33 can be updated by a control signal 35 each time a write operation is performed on the counter 23. The check value stored in the check register 33 is used for determining whether a write operation performed on the counter 23 is an authorised write operation or an unauthorised write operation. The check value may be incremented each time a write operation is performed, replaced with a new random number each time a write operation is performed, or a combination of both.