Apparatus and method for integrated frequency hopping and GPS receiver

• US 20020022465A1
• Filed: 12/04/2000
• Published: 02/21/2002
• Est. Priority Date: 08/15/2000
• Status: Abandoned Application

• Current Assignee: Parthus Technologies Plc (CEVA Incorporated)
• Original Assignee: Parthus Technologies Plc (CEVA Incorporated)
• Inventors: McCullagh, Michael J., Moloney, David M.
• Application Number:
  US09/729,763
• Publication Number:
  US 20020022465A1
• Time in Patent Office: Days
• US Class Current: 455/260
• CPC Class Codes: G01S 19/36 relating to the receiver frond end
• CPC Class Codes: H04B 1/3805 with built-in auxiliary receivers

Abstract

A method and apparatus of an integrated frequency hopping/GPS receiver and a corresponding frequency synthesizer are described.

Claims

1. An apparatus, comprising:

an integrated frequency hopping/GPS receiver that receives a downconversion signal from a frequency synthesizer, said frequency synthesizer having a phase lock loop with an operative frequency range that is less than the difference between an ISM band frequency and a GSM carrier frequency.

2. The apparatus of claim 1 wherein said wireless receiver further comprises an RF module having an off chip amplifier and an on chip amplifier for GPS signal processing path, said RF module having an on chip amplifier for said frequency hopping signal processing path.

3. The apparatus of claim 1 wherein said wireless receiver further comprises an IF module having an IF filter, said IF filter having a first bandwidth for said GPS signal processing path and a second bandwidth for said frequency hopping signal path.

4. The apparatus of claim 1 wherein said wireless receiver further comprises a digitizing module having an IQ combiner for said GPS signal processing path and an FSK demodulator for said frequency hopping signal path.

5. An apparatus, comprising:

an RF module within a wireless receiver, said RF module having an off chip amplifier and an on chip amplifier for a GPS signal processing path, said RF module having an on chip amplifier for a frequency hopping signal processing path.

6. An apparatus, comprising:

an IF module within a wireless receiver, said IF module having an IF filter, said IF filter having a first bandwidth for a GPS signal processing path and a second bandwidth for a frequency hopping signal path.

7. An apparatus, comprising:

a digitizing module within a wireless receiver, said digitizing module having an IQ combiner for a GPS signal processing path and an FSK demodulator for a frequency hopping signal path.

8. An apparatus, comprising:

a frequency synthesizer having a phase lock loop with an operative frequency range that is less than the difference between an ISM band frequency and a GSM carrier frequency, said phase lock having a feedback coupled to a sigma delta modulator, said sigma delta modulator configured to receive a control word for receiving a frequency hopping channel or a control word for receiving a GPS signal.

9. An apparatus, comprising:

a wireless receiver having a GPS signal processing path and a frequency hopping signal path, said wireless receiver having a control input that enables said GPS signal processing path or said frequency hopping signal processing path.