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US 5,177,766 AGranted
Digital clock timing generation in a spread-spectrum digital communication system
AssigneeSpectraLink Corporation
InventorsBruce M. Holland, Gary L. Bliss
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AssigneeSpectraLink Corporation
InventorsBruce M. Holland, Gary L. Bliss
Estimating the term…
A unique method and system is disclosed for generating digital clock timing in a receiver for use in direct-sequence spread-spectrum digital communication systems wherein spread data is delivered from a transmitter to a receiver. The present invention provides at the transmitter frames of digital communication data with each frame having a plurality of time slots and with each time slot having a plurality of digital bits. The transmitter utilizes direct-sequence spreading codes for spreading the digital bits in the time frame. The direct sequence spreading codes each have the same fixed sequence length of M chips and, furthermore, the number of chips per bit CB to spread each digital bit is constant and fully aligned with each digital bit. The ration of M:CB is an integer and the ratio of time of each time slot to the time of the M chips also equals an integer. The spread frames of digital information are despread at the receiver with receiver provided identical direct-sequence codes. The digital clock timing is generated from the receiver's pseudo random sequence generator. Bit timing equals CB*8, nibble timing equals 4*CB, and byte timing equals CB.
A method of generating digital data clock timing in a receiver for spread-spectrum digital communication data between a transmitter and a receiver, said method comprising the steps of:
A method of generating digital data clock timing in a receiver for spread-spectrum digital communication data between a transmitter and said receiver, said method comprising the steps of:
A method of generating digital bit clock timing in a receiver for direct-sequence spread-spectrum digital communication data between a transmitter and a receiver, said method comprising the steps of:
The method of generating digital data clock timing in a receiver for direct-sequence spread-spectrum digital communication data between a transmitter and a receiver, said method at said transmitter comprising the steps of:
A method of generating digital data clock timing in a receiver for direct-sequence spread-spectrum digital communication data between a transmitter and a receiver, said method at said transmitter comprising the steps of:
A system for generating digital timing for digital data in a spread-spectrum communication system, said system comprising:
A system for generating digital timing for a plurality of frames of digital data in a spread-spectrum communication system, said system comprising:
A system for generating digital timing for a plurality of frames of digital data in a spread-spectrum communication system, said system comprising:
Dependencies are inferred from the claim text.