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US5941936A Expired / Lapsed US ⏱️ 0.0 years remaining

One-bit run-length encoding and playback system

Assignee: Taylor Group of Companies Inc
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Filing: 1997-10-30
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Granted: 1999-08-24
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Expires: 2017-10-30
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Abstract

Abstract The present invention provides a one-bit run-length encoder system that encrypts and compresses a digital audio, and one-bit run-length playback system.

Inventors

  • 👤 Stephen Francis Taylor

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 17:00
CPC Classifications
H; H03; H03M; H03M7/00; H03M7/30

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 105 words
An audio recording system, comprising: a one-bit converter for generating a plurality of channels of digital audio data from one or more external sources; means for interleaving the plurality of channels into a run-length data stream, wherein the run-length data stream comprises a series of binary values indicating run-length lengths for each of the channels of digital audio data; and an input interface for accepting timing and control data associated with the audio data; means for inserting control and synchronization markers derived from the timing and control data into the run-length data stream, so that the digital audio data may be correctly located upon playback.
Claim 2
Dependent Claim 105 words
An audio recording system, comprising: a one-bit converter for generating a plurality of channels of digital audio data from one or more external sources; means for interleaving the plurality of channels into a run-length data stream, wherein the run-length data stream comprises a series of binary values indicating run-length lengths for each of the channels of digital audio data; and an input interface for accepting timing and control data associated with the audio data; means for inserting control and synchronization markers derived from the timing and control data into the run-length data stream, so that the digital audio data may be correctly located upon playback.
Claim 3
Dependent Claim 16 words
The audio recording system of claim 1, further comprising means for compressing the run-length data stream.
Claim 4
Dependent Claim 16 words
The audio recording system of claim 1, further comprising means for encrypting the run-length data stream.
Claim 5
Dependent Claim 21 words
The audio recording system of claim 1, further comprising means for storing the run-length data stream on a data storage device.
Claim 6
Dependent Claim 16 words
The audio recording system of claim 1, further comprising means for transmitting the run-length data stream.
Claim 7
Dependent Claim 24 words
The audio recording system of claim 1, wherein the one-bit converter accepts both analog and digital signals and generates the digital audio data therefrom.
Claim 8
Dependent Claim 18 words
The audio recording system of claim 1, wherein the one-bit converter generates pulse density modulated digital audio data.
Claim 9
Dependent Claim 24 words
The audio recording system of claim 1, wherein the digital audio data has only two levels comprising a logical one and a logical zero.
Claim 10
Dependent Claim 21 words
The audio recording system of claim 1, wherein the run-length data stream comprises a synchronizing portion and the run-length data portion.
Claim 11
Dependent Claim 128 words
An audio playback system, comprising: means for receiving a plurality of channels of digital audio data interleaved into a run-length data stream, wherein the run-length data stream comprises a series of binary values indicating run-length lengths for each of the channels of digital audio data; means for removing control and synchronization markers from the run-length data stream and for using the removed control and synchronization markers to control the playback of the run-length data stream; means for reconstructing the plurality of channels of digital audio data interleaved into the run-length data stream; and means for transmitting the reconstructed plurality of channels of digital audio data to an one-bit decoder, wherein the one-bit decoder recreates analog signals from the digital audio data to drive a plurality of audio transducers.
Claim 12
Dependent Claim 128 words
An audio playback system, comprising: means for receiving a plurality of channels of digital audio data interleaved into a run-length data stream, wherein the run-length data stream comprises a series of binary values indicating run-length lengths for each of the channels of digital audio data; means for removing control and synchronization markers from the run-length data stream and for using the removed control and synchronization markers to control the playback of the run-length data stream; means for reconstructing the plurality of channels of digital audio data interleaved into the run-length data stream; and means for transmitting the reconstructed plurality of channels of digital audio data to an one-bit decoder, wherein the one-bit decoder recreates analog signals from the digital audio data to drive a plurality of audio transducers.
Claim 13
Dependent Claim 16 words
The audio recording system of claim 10, further comprising means for de-compressing the run-length data stream.
Claim 14
Dependent Claim 16 words
The audio recording system of claim 10, further comprising means for de-encrypting the run-length data stream.
Claim 15
Dependent Claim 21 words
The audio recording system of claim 10, further comprising means for retrieving the run-length data stream from a data storage device.
Claim 16
Dependent Claim 20 words
The audio recording system of claim 10, further comprising means for receiving the run-length data stream from a transmitting device.
Claim 17
Dependent Claim 21 words
The audio recording system of claim 10, wherein the run-length data stream comprises a synchronizing portion and the run-length data portion.
Claim 18
Dependent Claim 30 words
The audio recording system of claim 15, wherein the synchronizing portion comprises inserted control and synchronization markers that a timeline for an audio program embedded in the run-length data stream.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-08-23 2003-02-22 2003-08-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-08-23 2007-02-22 2007-08-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-08-23 2011-02-22 2011-08-24 $7700.00 Window Closed / Lapsed

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