Pulse or digital communications – Pulse position – frequency – or spacing modulation
Reexamination Certificate
2006-05-30
2006-05-30
Bayard, Emmanuel (Department: 2634)
Pulse or digital communications
Pulse position, frequency, or spacing modulation
C375S333000
Reexamination Certificate
active
07054361
ABSTRACT:
An apparatus and method for providing control signals, comprising a processor coupled to a memory, for generating a signal sequence. The processor encodes the signal sequence into a plurality of symbols using a 5 pulse position modulated (5 PPM) scheme. Advantageously, the last position of each symbol encoded under the 5 PPM scheme is set to a low bit. The symbol sequence represents a signaling protocol having a payload portion and a header portion, wherein the header portion comprises a plurality of fields for defining the payload portion. The payload portion indicates keyboard characters or coordinates for a pointing device.
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“Infrared Data Association Serial Infrared Physical Layer Specification”m Version 1.3, pp. I-39, Oct. 15, 1998.
Otte Kurt William
Rhoads Steven Charles
Weber Barry
Bayard Emmanuel
Kiel Paul P.
Shedd Robert D.
Thomson Licensing
Tripoli Joseph S.
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