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    11.
    发明专利
    未知

    公开(公告)号：BR8807726A

    公开(公告)日：1990-08-07

    申请号：BR8807726

    申请日：1988-08-24

    Applicant: MOTOROLA INC

    Inventor： GERSON IRA ALAN ,  LINDSLEY BRETT LOUIS

    IPC: G10L15/28 ,  G10L15/00 ,  G10L15/22 ,  H04M1/00 ,  H04M1/27 ,  H04M1/60 ,  H04M9/08 ,  H04Q7/38 ,  H04B1/46 ,  G10L9/06

    Abstract: A reliable method for terminating a telephone call is disclosed using a specific sequence of steps performed by hands-free control system. The invention requires that the call terminating command sequence be recognized as: two separate speech utterances (e.g., TERMINATE (158) and CONVERSATION (158)); in proper sequence (e.g. TERMINATE first, then CONVERSATION) with a maximum pause time interval (124) between the end of the first utterance and the start of the second utterance (e.g., 300 milliseconds) and which meet predefined speech recognition matching criteria (110). Moreover, the present invention provides the user with a procedure to continue the telephone call in progress should the speech recognizer make a false recognition or if the user did not intend to speak the proper command. As a result, present invention enables a user to disconnect a telephone call by voice command with a high degree of reliability, even under high ambient noise conditions.

    METHOD FOR TERMINATING A TELEPHONE CALL BY VOICE COMMAND
    12.
    发明专利
    METHOD FOR TERMINATING A TELEPHONE CALL BY VOICE COMMAND 未知

    公开(公告)号：AU2382688A

    公开(公告)日：1989-04-18

    申请号：AU2382688

    申请日：1988-08-24

    Applicant: MOTOROLA INC

    Inventor： GERSON IRA ALAN ,  LINDSLEY BRETT LOUIS

    IPC: G10L15/28 ,  G10L15/00 ,  G10L15/22 ,  H04M1/00 ,  H04M1/27 ,  H04M1/60 ,  H04M9/08 ,  H04Q7/38 ,  H04B1/46 ,  G10L9/06

    Abstract: A reliable method for terminating a telephone call is disclosed using a specific sequence of steps performed by hands-free control system. The invention requires that the call terminating command sequence be recognized as: two separate speech utterances (e.g., TERMINATE (158) and CONVERSATION (158)); in proper sequence (e.g. TERMINATE first, then CONVERSATION) with a maximum pause time interval (124) between the end of the first utterance and the start of the second utterance (e.g., 300 milliseconds) and which meet predefined speech recognition matching criteria (110). Moreover, the present invention provides the user with a procedure to continue the telephone call in progress should the speech recognizer make a false recognition or if the user did not intend to speak the proper command. As a result, present invention enables a user to disconnect a telephone call by voice command with a high degree of reliability, even under high ambient noise conditions.

    METHOD AND APPARATUS FOR PREVENTING OVERFLOW AND UNDERFLOW OF AN ENCODER BUFFER IN A VIDEO COMPRESSION SYSTEM
    13.
    发明专利
    METHOD AND APPARATUS FOR PREVENTING OVERFLOW AND UNDERFLOW OF AN ENCODER BUFFER IN A VIDEO COMPRESSION SYSTEM 未知

    公开(公告)号：CA2186627C

    公开(公告)日：2000-08-08

    申请号：CA2186627

    申请日：1995-12-14

    Applicant: MOTOROLA INC

    Inventor： AUYEUNG CHEUNG ,  LEVINE STEPHEN NORMAN ,  LINDSLEY BRETT LOUIS

    IPC: H04N7/32 ,  H04N7/50 ,  H04N21/234 ,  H04N21/44 ,  H04N7/26

    Abstract: The present invention is a method and apparatus for preventing overflow and underflow of an encoder buffer in a video compression system. A virtual buffer is created in a rate controller to model the decoder buffer fullness (102). A sequence of bits is generated by an encoder (104). The encoder is controlled by the rate controller to prevent a decoder buffer underflow and overflow. Then, the sequence of bits is received by the encoder buffer to produce a bitstream (106). The bitstream corresponds to an instantaneous channel bitrate. The bitstream is transmitted from the encoder buffer to a decoder buffer following a delay (108). The delay is controlled by a rate controller to synchronize an encoder buffer fullness with a virtual buffer fullness (110). The synchronization prevents overflow and underflow of the encoder buffer.

    Optimal method of data reduction in a speech recognition system
    15.
    发明专利
    Optimal method of data reduction in a speech recognition system 未知

    公开(公告)号：HK40596A

    公开(公告)日：1996-03-15

    申请号：HK40596

    申请日：1996-03-07

    Applicant: MOTOROLA INC

    Inventor： GERSON IRA ALAN ,  LINDSLEY BRETT LOUIS

    IPC: G10L11/00 ,  G10L15/00 ,  G10L15/02 ,  G10L5/00

    Abstract: The present invention describes a method and arrangement for reducing a sequence of initial frames into a reduced set of representative frames by combining the initial frames into a plurality of representative frames, the combining process including generating a distortion measure associated with each representative frame and comparing each distortion measure to a distortion threshold. From these representative frames, a set of mutually exclusive frames is determined to minimize the number of representative frames, whereby each representative frame in the set represents a unique set of contiguous initial frames and has an associated distortion measure which does not exceed the distortion threshold.

    16.
    发明专利
    未知

    公开(公告)号：DE3853294D1

    公开(公告)日：1995-04-13

    申请号：DE3853294

    申请日：1988-08-24

    Applicant: MOTOROLA INC

    Inventor： GERSON IRA ALAN ,  LINDSLEY BRETT LOUIS

    IPC: G10L15/28 ,  G10L15/00 ,  G10L15/22 ,  H04M1/00 ,  H04M1/27 ,  H04M1/60 ,  H04M9/08 ,  H04Q7/38 ,  H04B1/46 ,  G10L9/06

    Abstract: A reliable method for terminating a telephone call is disclosed using a specific sequence of steps performed by hands-free control system. The invention requires that the call terminating command sequence be recognized as: two separate speech utterances (e.g., TERMINATE (158) and CONVERSATION (158)); in proper sequence (e.g. TERMINATE first, then CONVERSATION) with a maximum pause time interval (124) between the end of the first utterance and the start of the second utterance (e.g., 300 milliseconds) and which meet predefined speech recognition matching criteria (110). Moreover, the present invention provides the user with a procedure to continue the telephone call in progress should the speech recognizer make a false recognition or if the user did not intend to speak the proper command. As a result, present invention enables a user to disconnect a telephone call by voice command with a high degree of reliability, even under high ambient noise conditions.

    18.
    发明专利
    未知

    公开(公告)号：DE3688747D1

    公开(公告)日：1993-08-26

    申请号：DE3688747

    申请日：1986-12-18

    Applicant: MOTOROLA INC

    Inventor： GERSON IRA ALAN ,  LINDSLEY BRETT LOUIS

    IPC: G10L11/00 ,  G10L15/00 ,  G10L15/02 ,  G10L5/00

    Abstract: The present invention describes a method and arrangement for reducing a sequence of initial frames into a reduced set of representative frames by combining the initial frames into a plurality of representative frames, the combining process including generating a distortion measure associated with each representative frame and comparing each distortion measure to a distortion threshold. From these representative frames, a set of mutually exclusive frames is determined to minimize the number of representative frames, whereby each representative frame in the set represents a unique set of contiguous initial frames and has an associated distortion measure which does not exceed the distortion threshold.

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