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:
Jul. 03, 2007
Filed:
Aug. 23, 2005
Daniel M. Dreps, Georgetown, TX (US);
Anand Haridass, Austin, TX (US);
Bao G. Truong, Austin, TX (US);
Joel D. Ziegelbein, Iowa City, IA (US);
Daniel M. Dreps, Georgetown, TX (US);
Anand Haridass, Austin, TX (US);
Bao G. Truong, Austin, TX (US);
Joel D. Ziegelbein, Iowa City, IA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Signaling between two or more ICs use a signaling scheme wherein a reference signal is generated at the driver side and the receiver side. The driver side reference signal is coupled to the receiver side reference signal with a transmission line channel forming a reference channel. Data signal channels are paired with a reference channel between each two adjacent data channels. Adjacent pairs of data signal channels are each separated with an empty wiring channel. The paired data signals are received in one input of a differential receiver. The reference signal of the reference channel between the two paired data channels is coupled to the other input of the two differential receivers. Coupling from the paired data channels to the reference channel appears a common mode noise and is rejected by the differential receivers. The number of channels is reduced from a full differential signaling scheme.