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    Computer recording of telephone audio signals
    5.
    发明专利
    Computer recording of telephone audio signals 未知

    公开(公告)号：GB2282000A

    公开(公告)日：1995-03-22

    申请号：GB9414522

    申请日：1994-07-19

    Applicant: INTEL CORP

    Inventor： COX DANIEL R

    IPC: H04N1/00 ,  G06F3/16 ,  G11B31/00 ,  H04L29/12 ,  H04M1/65 ,  H04M1/656 ,  H04M1/715 ,  H04M11/00 ,  H04M11/10

    Abstract: A method/apparatus for audio recording in a computer system 10, comprising: means for selecting a normal audio mode or a telephone audio mode for the computer system; means for generating a set of sound samples by sampling audio signals over a local line 22 coupled to a telephone 16, 17, and converting the sound samples into sound data having a standard data format if the telephone audio mode is selected; means for generating the sound samples by sampling audio signals over an audio line 58, and converting the sound samples into sound data having the standard data format if the normal audio mode is selected; means for transferring the sound data to an audio task executing on a digital signal processing subsystem in the computer system, the audio task converting the sound data into a format required by a host audio application program executing on a host processor in the computer system, the audio task then transferring the sound data to the host audio application program.

    6.
    发明专利
    未知

    公开(公告)号：DE4344913A1

    公开(公告)日：1994-07-07

    申请号：DE4344913

    申请日：1993-12-29

    Applicant: INTEL CORP

    Inventor： WAGNER LARRY ,  SMITH RALPH S ,  COX DANIEL R

    IPC: H04M11/06 ,  H04M9/10

    Abstract: A transceiver providing simultaneous transfer of control information with voice and data over a public switched telephone network line is disclosed wherein the transceiver is coupled to a public switched telephone network (PSTN) via a single telephone line. The transceiver includes logic for generating control information and for combining the control information with voice signals or data signals for transmission and reception through the PSTN using a single telephone line. The PSTN channel 310 is divided into two component subchannels, a main channel 312 and a side channel 314. The main channel is provided for the transfer of voice signals and data signals at the same time the side channel is transferring control information and/or additional data signals. The control information transferred on the side channel is used primarily for selecting the transfer of either voice signals or data signals on the main channel. By providing a separate and independent side channel for controlling the main channel, the inherent delays caused in the prior art design by switching between a voice transfer mode and a data transfer mode using a single channel are eliminated without redefining the bandwidth of the standard PSTN channel.

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