Patent US5581795A successfully refreshed from Google Patents.
US5581795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for transmitting and receiving digital information through parallel printer port of computer by using embedding strobe bit in eight bit data of printer port
Assignee: Video Assoc Labs Inc
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Filing: 1996-02-28
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Granted: 1996-12-03
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Expires: 2016-02-28
Abstract
Abstract A unique combination of software and hardware provides any computer with a system for high speed digital data communications using the computer's standard parallel printer port. The disclosed embodiment of the invention allows any computer with a standard parallel printer port to play or record digital audio sound allowing the computer to serve as a platform for multimedia presentations.
Inventors
- 👤 Patrick Maupin
- 👤 Tom Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:53
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/42; G06F13/4265; G06F13/4269; G06F11/00; G06F11/30; G06F11/34; G06F11/3409; G06F11/3419; G06F13/382; G06F13/385; G06F13/4273; G06F3/00; G06F3/16; G06F11/3466; G06F11/3485; G06F2201/00; G06F2201/87; G06F2201/88; G06F2213/00; G06F2213/0004
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
100 words
Apparatus for transmitting and receiving digital information through a parallel printer port, comprising: a computer with a parallel printer port; an embedded strobe combined with digital information, said embedded strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing means for compressing said digital information into compressed digital information; means for transmitting and receiving said compressed digital information from said computer through said parallel printer port; and decompressing means for decompressing said compressed digital information.
Claim 2
Dependent Claim
100 words
Apparatus for transmitting and receiving digital information through a parallel printer port, comprising: a computer with a parallel printer port; an embedded strobe combined with digital information, said embedded strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing means for compressing said digital information into compressed digital information; means for transmitting and receiving said compressed digital information from said computer through said parallel printer port; and decompressing means for decompressing said compressed digital information.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1 wherein said compressing means and said decompressing means comprise ADPCM compression means.
Claim 4
Dependent Claim
20 words
The apparatus of claim 1 further comprising determining means for determining the maximum transmission speed of said parallel printer port.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 further comprising the block move instruction of said computer.
Claim 6
Dependent Claim
21 words
The apparatus of claim 1 further comprising storage medium of said computer used to store said digital information on said computer.
Claim 7
Dependent Claim
99 words
Apparatus for transmitting and receiving digital information through a parallel printer port, comprising: a computer with a parallel printer port; means for embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; means for compressing said digital information into compressed digital information; means for transmitting and receiving said compressed digital information from said computer through said parallel printer port; and decompressing means for decompressing said compressed digital information.
Claim 8
Dependent Claim
99 words
Apparatus for transmitting and receiving digital information through a parallel printer port, comprising: a computer with a parallel printer port; means for embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; means for compressing said digital information into compressed digital information; means for transmitting and receiving said compressed digital information from said computer through said parallel printer port; and decompressing means for decompressing said compressed digital information.
Claim 9
Dependent Claim
17 words
The apparatus of claim 6 wherein said compressing means and said decompressing means comprise ADPCM compression means.
Claim 10
Dependent Claim
20 words
The apparatus of claim 6 further comprising determining means for determining the maximum transmission speed of said parallel printer port.
Claim 11
Dependent Claim
14 words
The apparatus of claim 6 further comprising the block move instruction of said computer.
Claim 12
Dependent Claim
21 words
The apparatus of claim 6 further comprising storage medium of said computer used to store said digital information on said computer.
Claim 13
Independent Claim
91 words
A method for transmitting and receiving digital information through a parallel printer port, comprising the steps of: embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing said digital information into compressed digital information; transmitting and receiving said compressed digital information from a computer through a parallel printer port; and decompressing said compressed digital information into said digital information.
Claim 14
Independent Claim
91 words
A method for transmitting and receiving digital information through a parallel printer port, comprising the steps of: embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing said digital information into compressed digital information; transmitting and receiving said compressed digital information from a computer through a parallel printer port; and decompressing said compressed digital information into said digital information.
Claim 15
Dependent Claim
18 words
The method of claim 11 wherein said step of compressing and said step of decompressing use ADPCM compression.
Claim 16
Dependent Claim
20 words
The method of claim 11 further comprising the step of determining the maximum transmission speed of said parallel printer port.
Claim 17
Dependent Claim
22 words
The method of claim 11 further comprising the step of moving multiple-byte digital information using the block move instruction of said computer.
Claim 18
Dependent Claim
21 words
The method of claim 11 further comprising the step of storing the digital information on the storage medium of said computer.
Claim 19
Dependent Claim
114 words
A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for transmitting and receiving digital information through a parallel printer port, said method steps comprising the following steps: embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing said digital information into compressed digital information; transmitting and receiving said compressed digital information from a computer through a parallel printer port; and decompressing said compressed digital information into said digital information.
Claim 20
Dependent Claim
114 words
A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for transmitting and receiving digital information through a parallel printer port, said method steps comprising the following steps: embedding a strobe into digital information, said strobe further comprises one bit of the eight bit data port of said parallel printer port and said digital information comprises seven bits of said eight bit data port of said parallel printer port; compressing said digital information into compressed digital information; transmitting and receiving said compressed digital information from a computer through a parallel printer port; and decompressing said compressed digital information into said digital information.
Claim 21
Dependent Claim
20 words
The program storage device of claim 16 wherein said step of compressing and said step of decompressing use ADPCM compression.
Claim 22
Dependent Claim
22 words
The program storage device of claim 16 further comprising the step of determining the maximum transmission speed of said parallel printer port.
Claim 23
Dependent Claim
24 words
The program storage device of claim 16 further comprising the step of moving multiple-byte digital information using the block move instruction of said computer.
Claim 24
Dependent Claim
23 words
The program storage device of claim 16 further comprising the step of storing the digital information on the storage medium of said computer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-03 | 2000-06-03 | 2000-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-03 | 2004-06-03 | 2004-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-03 | 2008-06-03 | 2008-12-03 | $7700.00 | Window Closed / Lapsed |