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. 25, 2007
Filed:
Jan. 29, 2002
Applicant:
Mingheng Wang, Rochester Hills, MI (US);
Inventor:
Mingheng Wang, Rochester Hills, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/00 (2006.01); H04M 15/00 (2006.01); B60R 25/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a method for replenishing call-use authorization to a mobile vehicle. A call-use authorization request is received from a user. User credit availability information is determined. A replenishment amount request is received from the user. Call-use authorization data is updated based on the credit availability information and the replenishment amount request. The updated call-use authorization data is sent to an in-vehicle communication device by using a dual-tone multiple frequency protocol.