- Patent Title: Estimating frequency of a GNSS enabled device based on time stamps
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Application No.: US12748050Application Date: 2010-03-26
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Publication No.: US09651675B2Publication Date: 2017-05-16
- Inventor: Jeyhan Karaoguz , Charles Abraham , Mark Buer , David Garrett , David Albert Lundgren , David Murray
- Applicant: Jeyhan Karaoguz , Charles Abraham , Mark Buer , David Garrett , David Albert Lundgren , David Murray
- Applicant Address: SG Singapore
- Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G01S19/25
- IPC: G01S19/25 ; G01S19/23 ; G01S19/36 ; G01S19/37

Abstract:
A GNSS enabled device that is communicatively coupled to a network, receives time stamps via the network. The time stamps are generated based on reference clock signals within the network. GNSS receiver clock signal frequency may be adjusted based on the time stamps. When GNSS satellite signals and/or SRN signals are not available, the time stamps enable synchronization with GNSS satellites. Network clock signals and/or time stamps may be generated by an access point, a DSL modem, a cable modem and/or a primary reference clock within the network. A series of time stamps may be utilized for adjusting frequencies. Clock signals may be generated for adjusting frequencies based on a comparison between time stamps and oscillator or mixer output. Clock signals are generated for baseband, intermediate and/or RF frequency signal processing. GNSS satellite signals may be demodulated, correlated with a pseudonoise code sequence and/or synchronized based on the time stamps.
Public/Granted literature
- US20110199262A1 ESTIMATING FREQUENCY OF A GNSS ENABLED DEVICE BASED ON TIME STAMPS Public/Granted day:2011-08-18
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