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:
Feb. 05, 2019
Filed:
Sep. 08, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Robert D. Zupke, Santa Clara, CA (US);
Priyank D. Patel, San Jose, CA (US);
Gerhard A. Schneider, Cupertino, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/3565 (2006.01); G06F 13/38 (2006.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
H03K 3/3565 (2013.01); G06F 13/385 (2013.01); G06F 13/4081 (2013.01);
Abstract
Circuits, methods, and apparatus that may compensate for an incompatibility between connection detection schemes used by different interface circuits for different connector receptacles. One example may provide an active pull-down that normally provides a pull-down resistor and provides an open circuit for a period of time following a disconnection of an interface from a cable.