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:
May. 11, 2010
Filed:
Sep. 04, 2003
Satoru Takahashi, Takasaki, JP;
Ikuya Ohno, Takasaki, JP;
Norio Hayashi, Tamamura, JP;
Masachika Ohno, Takasaki, JP;
Kazuhiro Tagawa, Tamamura, JP;
Satoru Takahashi, Takasaki, JP;
Ikuya Ohno, Takasaki, JP;
Norio Hayashi, Tamamura, JP;
Masachika Ohno, Takasaki, JP;
Kazuhiro Tagawa, Tamamura, JP;
Hitachi, Ltd., Tokyo, JP;
Akita Electronics Systems Co., Ltd., Akita, JP;
Abstract
The semiconductor integrated circuit (RF IC) for a mobile telephone capable of transmitting/receiving the signals of plural bands reduces the DC offsets of the amplifiers located in the following stages of the mixers that demodulate or down-convert the reception signals. The invention scrambles the signal lines to transmit the outputs of the plural mixers that demodulate or down-convert the reception signals of different bands, so as to avoid the adjacent signal lines from making the same combination from the starting ends to the finishing ends.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile