Method and apparatus employing PAM-5 coding with clock...

Details Method and apparatus employing PAM-5 coding with clock... Method and apparatus employing PAM-5 coding with clock...

2007-05-29

2007-05-29

Kim, Kevin (Department: 2611)

Pulse or digital communications

Pulse code modulation

C332S115000

Reexamination Certificate

active

10684169

ABSTRACT:
To significantly reduce mobile station static power consumption, and to make it possible to use a high speed asynchronous link in the mobile station, the invention uses one of the amplitude levels of, preferably, a PAM-5 (Pulse Amplitude Modulation with five amplitude levels) modulation technique as a strobe signal to generate a change in the transmitted signal. The change in the transmitted signal makes it possible for a PAM-5 receiving circuit to sample and decode two consecutive occurrences of the same data bits. The use of this invention avoids the requirement to include an oscillator in the PAM-5 receiver, or to dedicate a signal line to transmit a clock signal from the transmitter to the receiver.

REFERENCES:
patent: 6829309 (2004-12-01), Zortea
patent: 2004/0101060 (2004-05-01), Simon et al.
Kaliman et al., “Ternary Physical Protocol for MARILAN, a Multiple-Access Ring Local Area Network”, IEEE 1988, 0195-623X/88/0000/0014, pp. 14-20.
Svensson et al., “A 3-Level Asynchronous Protocol for a Differential Two-Wire Communication Link”, IEEE 1994, 0018-9200/94, pp. 1129-1132.
Guo et al., “Voltage Comparator Circuits for Multiple-Valued CMOS Logic”, IEEE Computer Science 2002, Proceedings of the 32ndIntl. Symposium on Multiple-Valued Logic (ISMVL'02), 0195-623X-02, 7 pages.
Han et al., “A Current-Mode Folding/Interpolating CMOS Analog to Quaternary Converter Using Binary to Quaternary Encoding Block”, IEEE Computer Science 2002, Proceedings of the 32ndIEEE Intl. Symposium on Multiple-Valued Logic (ISMVL '02), 0195-623X/02, 6 pgs.
Taborek, et al., “Multi-Level Analog Signaling Techniques for 10 Gigabit Ethernet”, IEEE 802.3 Tutorial, 86 pgs, 1999.

Affiliated with

Also associated with

Rating

Method and apparatus employing PAM-5 coding with clock... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus employing PAM-5 coding with clock..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus employing PAM-5 coding with clock... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3729986