Navigating system with RFID function and related method thereof

• US 8,880,335 B2
• Filed: 11/30/2007
• Issued: 11/04/2014
• Est. Priority Date: 01/04/2007
• Status: Active Grant

• Current Assignee: Xueshan Technologies Inc. (Wi-LAN Inc.)
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: Yang, Chao-Tung, Chen, ShouFang
• Primary Examiner(s): Khatib, Rami
• Application Number:
  US11/947,787
• Publication Number:
  US 20080167815A1
• Time in Patent Office: 2,531 Days
• Field of Search: 701/214, 701/400, 701/408, 701/409, 701/410, 701/412, 701/467, 701/468, 340/825.49, 340/10.1, 340/10.42, 340/10.52
• US Class Current: 701/412
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G01S 19/05 providing aiding data

Abstract

A navigating system with RFID function includes a GPS module for receiving a plurality of satellite signals for location, and an RFID reader for receiving an RFID signal. The navigating system performs navigation according to a first position information and the location function of the GPS module if the RFID signal includes the first position information.

Claims

1. A navigating system with radio frequency identification (RFID) function, comprising:

a global positioning system (GPS) module, configured for receiving a plurality of satellite signals for performing positioning, and the GPS module comprises;

a radio frequency (RF) receiver, configured for receiving the plurality of satellite signals to generate a base-band signal; and

a first base-band circuit, coupled to the RF receiver, the first base-band circuit configured for performing positioning according to the base-band signal;

wherein the first base-band circuit generates second position information according to the satellite signals received by the GPS module and store the second position information;

a storage device, coupled to the GPS module, the storage device configured for storing data; and

an RFID tag, coupled to the storage device, the RFID tag and the GPS module shares the storage device, the RFID tag configured for receiving an RFID signal generated from an external RFID reader disposed outside the navigating system, and storing the data comprised in the RFID signal into the storage device, and the RFID tag comprises a second base-band circuit, and the second base-band circuit is utilized for accessing the storage device and shares the storage device with the GPS module;

wherein when the data comprised in the RFID signal is a first position information, the navigating system performs navigation according to the first position information and the positioning function of the GPS module;

wherein the second position information generated by the GPS module is stored in the storage device, and the RFID tag reads the second position information from the storage device, and transmits the second position information to the external RFID reader.

2. The navigating system with RFID function of claim 1, wherein the RFID tag comprises:

a demodulator, configured for demodulating the RFID signal to generate a demodulated RFID signal;

the second base-band circuit, coupled to the demodulator, the second base-band circuit configured for processing the demodulated RFID signal;

a modulator, coupled to the second base-band circuit, the modulator configured for modulating a data signal from the second base-band circuit to generate a modulated data signal, and outputting the modulated data signal;

a clock signal generating module, coupled to the second base-band circuit and the modulator, the clock signal generating module configured for providing at least one clock signal to the second base-band circuit and the modulator; and

a power supply module, configured for providing operating power to the demodulator, the second base-band circuit, the modulator, and the clock signal generating module.

3. The navigating system with RFID function of claim 2, wherein the power supply module generates the operating power according to the RFID signal.