12-chip coded spread spectrum modulation for direct conversion radio architecture in a digital cordless telephone (US Patent 5892792)

Patent number: 5892792 Granted: 1999-04-06 Filed: 1995-12-06 Inventors: John S. Walley (Lake Forest, CA, US) Assignees: Rockwell International Corporation (Newport Beach, CA, US)

Abstract

A cordless direct sequence spread spectrum telephone using a direct conversion radio architecture wherein the code sequence used for spreading and despreading is an even code sequence to prevent addition of low frequency noise in the down-conversion process, the