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.
Patent No.:
Date of Patent:
Feb. 25, 2003
Filed:
Jan. 18, 2000
Applicant:
Inventor:
Takayuki Nakashima, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/06 ;
U.S. Cl.
CPC ...
H04B 1/06 ;
Abstract
An IrDA modulation/demodulation integrated circuit device designed for use in a portable telephone receives a clock used in a base-band integrated circuit device for processing a base-band signal, and converts the frequency of the received signal by using a PLL circuit to produce a clock. This helps reduce the number of resonators incorporated in the portable telephone, and thereby reduce the cost thereof and the area of the circuit board provided therein.
Nakashima, Takayuki. (2003). Irda modulation/demodulation integrated circuit device (U.S. Patent No. 6526270). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6526270
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile