Title:
パルス幅制御回路
Document Type and Number:
Japanese Patent JP3733116
Kind Code:
B2
Abstract:
The present invention has an object to provide, for a circuit for controlling pulse width of a signal for driving a light emitting element, a pulse width control circuit capable of responding to multi-bit rates in the same circuit structure. For this purpose, the pulse width control circuit of the present invention comprises: a Tr/Tf control section controlling at least one of a rise time Tr and a fall time Tf of an input signal according to the bit rate of the input signal; a waveform shaping section shaping a signal output from the Tr/Tf control section to generate an output signal; and a control signal generating section generating a control signal for controlling an operation of the Tr/Tf control section based on pulse width control information.
Inventors:
Miki Makoto
Satoshi Matsuyama
Satoshi Matsuyama
Application Number:
JP2002538595A
Publication Date:
January 11, 2006
Filing Date:
October 26, 2000
Export Citation:
Assignee:
富士通株式会社
International Classes:
H03K7/08; H03K3/017; H03K5/04; H03K5/12; H04L25/03; H01S5/042
Domestic Patent References:
| JP4069982A | ||||
| JP9092916A | ||||
| JP5259545A |
Attorney, Agent or Firm:
Tomijio Sasashima