US5778256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
PDA having a separate infrared generating device connected to its printer port for controlling home appliances
Assignee: F Poszat HU LLC
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Filing: 1996-09-04
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Granted: 1998-07-07
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Expires: 2016-09-04
Abstract
Abstract According to the present invention there is provided an infrared code generating and transmitting device adapted to be coupled to or incorporated in a microcomputer system, commonly referred to as a personal digital assistant (PDA). The IR code generating and transmitting device comprises a CPU separate or incorporated into the microcomputer system of the PDA; a memory separate or incorporated into the microcomputer system; an LED output; LED driver circuitry coupled between the CPU and the LED output; an interface connector; an interface buffer circuit coupled between the interface connector and the CPU; and an interface data buffer circuit coupled by data lines between the interface connector and the CPU.
Inventors
- 👤 Paul Vernon Darbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:03
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1684; G06F1/1698; G06F1/1626; G06F1/1632; G06F15/00; G06F15/02; G06F15/0225; H; H03; H03J; H03J9/00; H03J9/06; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04B1/202; H04B1/38; H04B10/00; H04B10/11; H04B10/114; H03J1/00; H03J1/0008; H03J1/0025
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A microcomputer system of a personal digital assistant (PDA) type comprising: a portable and hand held unit having a standard printer port; an infrared device comprising a separate unit which can be mechanically and physically attached to said PDA as an integral part of said system, said infrared device having a communication port which can be electrically connected to said printer port; wherein said infrared device being operable for generating a plurality of infrared control signals suitable for control of video, home entertainment and home automation systems based upon stored program information; and wherein said infrared device includes signal generating and transmitting circuitry for selectively providing: a) a one-byte command signal dependant on the particular device to be controlled; and b) a second type of command signal for providing control function comprising more than said one byte signal.
Claim 2
Dependent Claim
138 words
A microcomputer system of a personal digital assistant (PDA) type comprising: a portable and hand held unit having a standard printer port; an infrared device comprising a separate unit which can be mechanically and physically attached to said PDA as an integral part of said system, said infrared device having a communication port which can be electrically connected to said printer port; wherein said infrared device being operable for generating a plurality of infrared control signals suitable for control of video, home entertainment and home automation systems based upon stored program information; and wherein said infrared device includes signal generating and transmitting circuitry for selectively providing: a) a one-byte command signal dependant on the particular device to be controlled; and b) a second type of command signal for providing control function comprising more than said one byte signal.
Claim 3
Dependent Claim
42 words
A system as in claim 1 wherein: a) said PDA comprises a flat case; b) said infrared device comprises a flat case mechanically attached to said PDA case; and c) light emitting diodes are mounted on an end of said infrared device.
Claim 4
Dependent Claim
16 words
A system as in claim 2 wherein said infrared device is substantially smaller than said PDA.
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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) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |