Title:
WAVEFORM GENERATOR
Document Type and Number:
Japanese Patent JP3703083
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a waveform generator of small circuit scale which can operate depending on any one of a plurality of band limit characteristics.
SOLUTION: The waveform generator comprises a waveform generating means 2 for generating a waveform signal subjected to band limitation by first band limit characteristics depending on an input signal sequence; a memory means 1 prestored with the difference signal between a waveform signal subjected to band limitation by first band limit characteristics for the input signal sequence and a waveform signal subjected to band limitation by second band limit characteristics for the input signal sequence, and outputting the difference signal depending on the input signal sequence; means 6 for summing a waveform signal from the waveform generating means 2 and a difference signal from the memory means 1, and outputting a waveform signal subjected to band limitation by second band limit characteristics; and a switch means 5 for outputting any one of a waveform signal from the waveform generating means 2 or a waveform signal from the summing means 6 selectively.
Inventors:
Hiromi Matsuzaka
Application Number:
JP2001002676A
Publication Date:
October 05, 2005
Filing Date:
January 10, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04L27/00; G06F1/03; H03H17/06; H04B1/40; H04L25/03; (IPC1-7): H04L27/00
Domestic Patent References:
| JP2000244590A | ||||
| JP8204769A | ||||
| JP2000183987A |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada