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US 5,311,176 AGranted
Method and apparatus for generating Walsh codes
AssigneeMotorola, Inc.
InventorDavid P. Gurney
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Abstract
A method and apparatus is provided for generating Walsh codes. A first group of address signals is generated. Subsequently, inversion control signals are generated by logically gating the first group of address signals with a second group of address signals. Finally, a Walsh code is produced by inverting elements of a predetermined vector in accordance with the generated inversion control signals.
Claims16
A Walsh code generator, comprising:
- (a) counter means for generating a first group of address signals;
- (b) address means, operatively coupled to the counter means, for generating inversion control signals by logically gating the first group of address signals with a second group of address signals;
- and
- (c) code inversion means, operatively coupled to the address means, for producing a Walsh code by inverting elements of a predetermined non-null vector through an Exclusive-OR logical gating with the generated inversion control signals.
1 more element
A method of generating Walsh codes, comprising:
- (a) generating a first group of address signals;
- (b) generating inversion control signals by logically gating the first group of address signals with a second group of address signals;
- and
- (c) producing a Walsh code by inverting elements of a predetermined non-null vector through an Exclusive-OR logical gating with the generated inversion control signals.
1 more element
Dependencies are inferred from the claim text.