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:
Mar. 13, 2007
Filed:
Nov. 24, 2003
Akihiro Ochii, Shiga-ken, JP;
Masayuki Shibuya, Taipei, TW;
Norio Nakajima, Takatsuki, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A small-sized low-cost multiplexer with a low insertion loss includes a first filter defining a lowpass filter that passes a signal in a first frequency band and attenuates a signal in second and third frequency bands, a second filter including a SAW filter and defining a bandpass filter that passes a signal in the second frequency band and attenuates a signal in the first and third frequency bands, and a third filter defining a highpass filter that passes a signal in the third frequency band and attenuates a signal in the first and second frequency bands. One of two ports of each of the first, second, and third filters are connected in common with a common port.