EP1104955A1

5G,4G,3G,2G

Title

System and method for generating signal waveforms in a CDMA cellular telephone system

Application Number:

EP20010103642

Publication Date:

06-06-2001

Current Assignee:

Family ID:

Application Date:

21-06-1991

Declaring Company:

Publication Country:

US

Priority Date:

25-06-1990

Title

System and method for generating signal waveforms in a CDMA cellular telephone system

Application Number:

EP20010103642

Family ID:

Publication Country:

US

Publication Date:

06-06-2001

Application Date:

21-06-1991

Priority Date:

25-06-1990

Current Assignee:

Declaring Company:

Abstract  Abstract

SUMMARY OF THE INVENTION


* 1. A modulation system for use in spread spectrum communications comprising:
* means for generating a first orthogonal sequence signal corresponding to a selected one of a plurality of orthogonal binary sequences;
* means for generating a pseudo-noise (PN) signal corresponding to a predetermined PN binary sequence;
* means for combining said first orthogonal sequence signal and said PN signal and for providing a resultant first modulation signal.
* 2. The system of 1 further comprising additional means for combining said first modulation signal with an input information signal and for providing a resultant spread spectrum information signal.
* 3. The system of 1 wherein said plurality of orthogonal binary sequences are Walsh sequences.
* 4. The system of 1 wherein said PN sequence is an augmented length maximal linear sequence PN code.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.