公开(公告)号：EP1112625B1

公开(公告)日：2006-05-31

申请号：EP99943854.2

申请日：1999-08-24

申请人： MOTOROLA, INC.

发明人： ASHLEY, James, P. ,  PENG, Weimin

IPC分类号： H04B7/216 ,  G10L19/10

CPC分类号： G10L19/12 ,  H03M7/30

摘要： To achieve high quality speech reconstruction at low bit rates, constraints on position combinations among two or more pulses (403) are implemented. By placing constraints on position combinations, certain combinations of pulses are prohibited which allows the most significant pulses to always be coded, thereby improving speech quality. After all valid combinations are considered, a list of pulse pairs (codebook) which can be indexed using a single, predetermined bit length codeword is produced. The codeword is transmitted to a destination where it is used by a decoder to reconstruct the original information signal.

公开(公告)号：EP0974206B1

公开(公告)日：2004-05-06

申请号：EP98906535.4

申请日：1998-02-18

申请人： MOTOROLA, INC.

发明人： DECLERK, Daniel, J. ,  ASHLEY, James, P.

IPC分类号： H04B7/216 ,  H04Q7/38

CPC分类号： H04W36/0094

摘要： A mobile station (106) in a code division multiple access (CDMA) communication system (100) implements scanning of pilot channels on a different frequency by reserving a periodic frame on the forward channel to allow the mobile station (106) to change frequencies and scan for other pilot channels. To preserve some aspects of voice quality, both the base station (102) and mobile station (106) voice encode speech at a maximum of half rate and transmit the information as secondary traffic prior to the frame where the mobile station (106) scans the alternate frequency. To maximize the trade-off between voice quality and frequency of the scan, the base station (102) indicates to the mobile station (106) the period between other frequency scans via messaging. To ensure compatibility, this method can be negotiated via known service configuration negotiation techniques.

公开(公告)号：EP1913590A2

公开(公告)日：2008-04-23

申请号：EP06786686.3

申请日：2006-07-07

申请人： Motorola, Inc.

发明人： MIRANDA-KNAPP, Carlos, A. ,  ASHLEY, James, P.

IPC分类号： G10L21/00

CPC分类号： H04M1/573 ,  G10L21/00 ,  G10L2021/0135 ,  H04M1/6008 ,  H04M1/72544 ,  H04M15/06

摘要： A communication device (10) can include a transceiver (12), a transducer or microphone (14) coupled to the transceiver for receiving voice input from a user, and a processor (16) coupled to the transceiver. The processor can be programmed to receive (32) a predetermined type of phone call or an indication of a caller indication from a calling party and warp (38) a voice input from the user of the communication device based on the caller indication. How the predetermined type of phone call is determined can be done in a number of ways including using an optional caller identification module (18). The caller ID module can provide information on whether the caller is recognized or whether the caller ID information is unavailable.

公开(公告)号：EP1922718A2

公开(公告)日：2008-05-21

申请号：EP06785795.3

申请日：2006-06-29

申请人： Motorola, Inc.

发明人： ASHLEY, James, P. ,  MITTAL, Udar

IPC分类号： G10L11/04

CPC分类号： G10L19/09 ,  G10L21/00 ,  G10L21/06

摘要： In a speech encoder/decoder (200/300) a pitch delay contour endpoint modifier (208) is employed to shift the endpoints of a pitch delay interpolation curve up or down. Particularly, the endpoints of the pitch delay interpolation curve are shifted based on a variation and/or a standard deviation in pitch delay.

公开(公告)号：EP1092294B1

公开(公告)日：2004-05-12

申请号：EP99917565.6

申请日：1999-04-16

申请人： MOTOROLA, INC.

发明人： LOVE, Robert, T. ,  ASHLEY, James, P. ,  PROCTOR, Lee ,  BAROT, Anil ,  COHEN, Arnie

IPC分类号： H04L1/00 ,  H04B7/005

CPC分类号： H04L1/0021 ,  H04L1/0009 ,  H04L1/0025 ,  H04W52/30

公开(公告)号：EP1922718B1

公开(公告)日：2010-01-27

申请号：EP06785795.3

申请日：2006-06-29

申请人： Motorola, Inc.

发明人： ASHLEY, James, P. ,  MITTAL, Udar

IPC分类号： G10L19/08 ,  G10L11/04

CPC分类号： G10L19/09 ,  G10L21/00 ,  G10L21/06

公开(公告)号：EP1112625A1

公开(公告)日：2001-07-04

申请号：EP99943854.2

申请日：1999-08-24

申请人： MOTOROLA, INC.

发明人： ASHLEY, James, P. ,  PENG, Weimin

IPC分类号： H04B7/216

CPC分类号： G10L19/12 ,  H03M7/30

摘要： To achieve high quality speech reconstruction at low bit rates, constraints on position combinations among two or more pulses (403) are implemented. By placing constraints on position combinations, certain combinations of pulses are prohibited which allows the most significant pulses to always be coded, thereby improving speech quality. After all valid combinations are considered, a list of pulse pairs (codebook) which can be indexed using a single, predetermined bit length codeword is produced. The codeword is transmitted to a destination where it is used by a decoder to reconstruct the original information signal.

公开(公告)号：EP0979506A1

公开(公告)日：2000-02-16

申请号：EP98901181.2

申请日：1998-01-05

申请人： MOTOROLA, INC.

发明人： ASHLEY, James, P.

IPC分类号： G10L9/00

CPC分类号： G10L19/18 ,  G10L25/78

摘要： To accurately determine rate and voice activity in moderate-to-low signal-to-noise ratios (item 703) (SNRs) to maximize voice quality, system capacity and/or battery life, parameters from a noise suppression system are used as inputs to the rate determination function. Voice metrics are compared to thresholds (item 715) and rates are determined (items 721, 727, 730).

摘要翻译： 为了准确地确定在中低信噪比（项目703）（SNR）下的速率和语音活动以最大化语音质量，系统容量和/或电池寿命，来自噪声抑制系统的参数被用作 速率确定功能。 将语音指标与阈值（项目715）进行比较，并确定费率（项目721,727,730）。

公开(公告)号：EP0974206A1

公开(公告)日：2000-01-26

申请号：EP98906535.4

申请日：1998-02-18

申请人： MOTOROLA, INC.

发明人： DECLERK, Daniel, J. ,  ASHLEY, James, P.

IPC分类号： H04B7/216 ,  H04Q7/00

CPC分类号： H04W36/0094

摘要： A mobile station (106) in a code division multiple access (CDMA) communication system (100) implements scanning of pilot channels on a different frequency by reserving a periodic frame on the forward channel to allow the mobile station (106) to change frequencies and scan for other pilot channels. To preserve some aspects of voice quality, both the base station (102) and mobile station (106) voice encode speech at a maximum of half rate and transmit the information as secondary traffic prior to the frame where the mobile station (106) scans the alternate frequency. To maximize the trade-off between voice quality and frequency of the scan, the base station (102) indicates to the mobile station (106) the period between other frequency scans via messaging. To ensure compatibility, this method can be negotiated via known service configuration negotiation techniques.

公开(公告)号：EP0895688B1

公开(公告)日：2006-02-15

申请号：EP97950580.7

申请日：1997-11-04

申请人： MOTOROLA, INC.

发明人： ASHLEY, James, P. ,  PROCTOR, Lee, M.

IPC分类号： H04M9/00 ,  H04M11/00 ,  H04B3/20 ,  H04M9/08 ,  H04B3/23

CPC分类号： H04M9/082 ,  H04B3/23

摘要： An improved non-linear processor used in echo cancellation eliminates a comfort noise source (214) and instead inputs a control signal (224) directly into a noise suppression system (403). The noise suppression system (403) uses the control signal (224) to inhibit the iterative update of the background noise estimate when the control signal (224) is active, which prevents any residual echo from biasing the noise estimate provided by the noise suppression system (403). Additionally, the control signal (224) is used by a gain calculator (533) within the noise suppression system (403) to attenuate each frequency band to the maximum allowable amount plus the current residual channel signal-to-noise ratio (SNR). Depending on the implementation, the noise suppression system (403) models the background noise of either a user of the PSTN or a user of a mobile station.