Waveform shaping method and equipment

Details Waveform shaping method and equipment Waveform shaping method and equipment

1996-06-04

1999-05-04

Vo, Don N.

Pulse or digital communications

Systems using alternating or pulsating current

375271, 375285, 375296, 327291, H04L 2700

Patent

active

059011793

ABSTRACT:
In the transmitter which carries out burst transmission using information data as a packet, if the status is divided into four modes, namely, burst stop mode, burst rising mode, burst continuous mode, and burst falling mode, a waveform shaping equipment designed to read out shaped waveform data for each mode from outputs of either of the two memory tables, the first memory table which holds waveform data for specific data patterns used in common in burst rising mode and burst falling mode and the second memory table which holds waveform data for all data patterns used in the burst continuous mode, or a waveform shaping equipment comprising the third memory table which holds waveform data corresponding to all the data patterns used in the burst rising mode and the fourth memory table which holds waveform data corresponding to all data patterns used in the burst falling mode and generating shaped waveform data by synthesizing the two outputs of the third and the fourth memory tables at the time of burst continuous mode.

REFERENCES:
patent: 4843352 (1989-06-01), Kamisaka et al.
Hitoshi Takai, "BER Performance of Anti-Multipath Modulation Scheme PSK-VP and its Optimum Phase-Waveform", IEEE Transactions on Vehicular Technology, pp. 625-640, vol. 42, No. 4, (Nov. 1993).
Hitoshi Takai, "BER Performance of Anti-Multipath Modulation PSK-VP and it Optimum Phase-Waveform", 1990, IEEE CH2846-4/90/0000-0412, pp. 412-419.
"IEEE Transactions of Communications", Oct. 1977, vol. COM-25, No. 10, pp. 1242-1245.

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