The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 12, 2003

Filed:

Sep. 29, 1999
Applicant:
Inventors:

Tsutomu Ishikawa, Osaka, JP;

Satoru Sekiguchi, Osaka, JP;

Hiroshi Kobori, Osaka, JP;

Kiyokazu Kamado, Osaka, JP;

Hideo Kunio, Osaka, JP;

Isao Ochiai, Osaka, JP;

Kiyoshi Takada, Osaka, JP;

Hiroshi Inoguchi, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/000 ;
U.S. Cl.
CPC ...
H04B 1/000 ;
Abstract

In a data transmission, a driving circuit 14 drives a light receiving element 15 in accordance with data from an external control circuit. In accordance with IrDA or remote control communication, driving capability of the driving circuit is changed. In a data reception, received data is transferred to a first or a second signal processing circuit in accordance with the IrDA or remote control communication and processed according to each communication format. In this configuration, a single light emitting or light receiving element permits data communication in different kinds of data communication formats.


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