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. 24, 2012
Filed:
Jun. 15, 2009
Katsuyuki Tanaka, Kanagawa, JP;
Masayuki Sawada, Kanagawa, JP;
Hideki Takahashi, Kanagawa, JP;
Koichiro Teranishi, Kanagawa, JP;
Katsuyuki Tanaka, Kanagawa, JP;
Masayuki Sawada, Kanagawa, JP;
Hideki Takahashi, Kanagawa, JP;
Koichiro Teranishi, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A portable phone device comprises a telephone unit for base band processing of a receiving signal and audio conversion processing, as well as a global positioning system (GPS) receiving unit for receiving signals from at least one GPS satellite, each signal including a spread code. A crystal oscillator generates a first oscillation signal having a predetermined frequency, and a temperature controlled oscillator generates a second oscillation signal having a predetermined frequency different from that of the first oscillation signal. A synchronization capture portion performs synchronization capture of the spread code, and a synchronization hold portion performs synchronization holding and demodulation of the signals received from the at least one GPS satellite. A central processing unit calculates position and speed of the portable phone device.