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Patent Agency Ranking
公开(公告)号：GB2296123B
公开(公告)日：1998-08-12
申请号：GB9425091
申请日：1994-12-13
Applicant: IBM
Inventor： ASHOUR GAL , LISLE RONALD J , SHARIR NAFTALY
IPC: G10H1/00
Abstract: PCT No. PCT/GB95/02008 Sec. 371 Date Oct. 28, 1996 Sec. 102(e) Date Oct. 28, 1996 PCT Filed Aug. 24, 1995 PCT Pub. No. WO96/18994 PCT Pub. Date Jun. 20, 1996A MIDI playback system is described in which a sequencer is characterized by: logic for generating a sequence of events, the sequence comprising groups of events, each group comprising events to be executed within a first time interval, the groups being separated in the sequence by marker events for indicating the time intervals, the sequencer being arranged to send the sequence of events together to a synthesizer. A synthesizer is described comprising storage means to receive and store the sequences of events; logic for reading an event from the storage; and logic for determining if the event is a marker event, the synthesizer being arranged to wait, if the event is a marker event, a time equal to the first time interval before reading another event from storage. Using this arrangement, the sequencer is no longer required to schedule the MIDI commands precisely on time and therefore the timing services that a software implementation of such a sequencer might ask from a computer system are reduced.
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公开(公告)号：DE69608292T2
公开(公告)日：2001-01-04
申请号：DE69608292
申请日：1996-02-15
Applicant: IBM
Inventor： ASHOUR GAL , MEDAN YOAV , SHARIR NAFTALY
Abstract: An audio synthesizer is disclosed for generating an analog or digital audio output in response to coded control instructions representing musical events, such as a MIDI data stream. The synthesizer has a general purpose computer portion with a CPU programmed to receive the control instructions and generate audio samples and a special purpose hardware portion for receiving the control instructions and generating the audio samples. The synthesizer also has a controller for directing the control instructions either to the general purpose computer portion or to the hardware portion to generate the audio samples; and means to combine the audio samples generated by the general purpose computer portion and the hardware portion to form an audio output which accords with the control instructions.
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公开(公告)号：GB2306043A
公开(公告)日：1997-04-23
申请号：GB9520124
申请日：1995-10-03
Applicant: IBM
Inventor： ASHOUR GAL , MEDAN YOAV , SHARIR NAFTALY
Abstract: An audio synthesizer is disclosed for generating an analogue or digital audio output in response to coded control instructions representing musical events, such as a MIDI data stream (output of 310). The synthesizer comprises: a general purpose computer portion having a CPU programmed to receive the control instructions and generate audio samples; a special purpose hardware portion 330, eg a standard sound card, for receiving the control instructions and generating the audio samples; a controller 335 for directing the control instructions either so that the general purpose computer portion 340, 350 generates the audio samples or so that the hardware portion 330 generates the audio samples; and means to combine the audio samples generated by the general purpose computer portion and the hardware portion to form an audio output which accords with the control instructions.
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公开(公告)号：DE69608292D1
公开(公告)日：2000-06-15
申请号：DE69608292
申请日：1996-02-15
Applicant: IBM
Inventor： ASHOUR GAL , MEDAN YOAV , SHARIR NAFTALY
Abstract: An audio synthesizer is disclosed for generating an analog or digital audio output in response to coded control instructions representing musical events, such as a MIDI data stream. The synthesizer has a general purpose computer portion with a CPU programmed to receive the control instructions and generate audio samples and a special purpose hardware portion for receiving the control instructions and generating the audio samples. The synthesizer also has a controller for directing the control instructions either to the general purpose computer portion or to the hardware portion to generate the audio samples; and means to combine the audio samples generated by the general purpose computer portion and the hardware portion to form an audio output which accords with the control instructions.
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公开(公告)号：GB2296123A
公开(公告)日：1996-06-19
申请号：GB9425091
申请日：1994-12-13
Applicant: IBM
Inventor： ASHOUR GAL , LISLE RONALD J , SHARIR NAFTALY
IPC: G10H1/00
Abstract: A MIDI playback system is described in which a sequencer is characterised by: logic for generating a sequence of events, the sequence comprising groups of events, each group comprising events to be executed within a first time interval, the groups being separated in the sequence by marker events for indicating the time intervals, the sequencer being arranged to send the sequence of events together to a synthesizer. A synthesizer is described comprising storage means to receive and store the sequences of events; logic for reading an event from the storage; and logic for determining if the event is a marker event, the synthesizer being arranged to wait, if the event is a marker event, a time equal to the first time interval before reading another event from storage. Using this arrangement, the sequencer is no longer required to schedule the MIDI commands precisely on time and therefore the timing services that a software implementation of such a sequencer might ask from a computer system are reduced.
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