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:
Apr. 30, 2013
Filed:
May. 25, 2011
Gregory S. Scott, Santa Clara, CA (US);
Vincent R. Von Kaenel, Palo Alto, CA (US);
Gregory S. Scott, Santa Clara, CA (US);
Vincent R. von Kaenel, Palo Alto, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Receiver circuits for differential and single-ended signals are disclosed. A receiver may include a differential amplifier configured to receive a first signal of a differential pair at a first input and a second signal of the differential pair at a second input when operating in differential mode, and a single-ended signal at the first input and a reference signal at a third input when operating in single-ended mode. The receiver may also include an inverter coupled to the differential amplifier. The inverter may be configured to provide a first beta ratio in differential mode and a second beta ratio in single-ended mode. Several receivers may be used, for example, to process a differential clock signal and one or more single-ended data signals referenced to the clock signal and/or differential data signals referenced to a single-ended clock signal. The rise/fall delays of each signal through each respective receiver may be independently adjusted.