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:
Dec. 30, 2008
Filed:
Mar. 23, 2006
Abhay Dixit, San Diego, CA (US);
Mehdi Hamidi Sani, Rancho Santa Fe, CA (US);
Vivek Mohan, San Diego, CA (US);
Abhay Dixit, San Diego, CA (US);
Mehdi Hamidi Sani, Rancho Santa Fe, CA (US);
Vivek Mohan, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A transceiver interface for data transfer between two integrated circuits (ICs or 'chips') utilizes a current mode technique rather than conventional voltage mode differential signaling techniques. A current pulse is injected into one of two transmission wires based on a signal value to be transmitted (e.g., logic '0' or “1”) by a driver on a transmitting chip. The current pulse is received as a differential current signal at a receive block in a receiving chip. The differential signal is converted to a low swing differential voltage signal by current comparators. The differential voltage signal may be detected by an op-amp receiver which outputs the appropriate signal value.