Invention Grant
- Patent Title: Methods and arrangements for error correction in decoding data from an electromagnetic radiator
- Patent Title (中): 解码来自电磁辐射器的数据的纠错方法和装置
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Application No.: US13539354Application Date: 2012-06-30
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Publication No.: US09148250B2Publication Date: 2015-09-29
- Inventor: Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma , Lei T. Yang
- Applicant: Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma , Lei T. Yang
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schubert Law Group PLLC
- Main IPC: H03M13/00
- IPC: H03M13/00 ; H04L1/00 ; H03M13/09

Abstract:
Embodiments may communicate via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode lighting via receivers that can determine data from light received from the radiator. Some embodiments decode data of a packet transmitted from modulated lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera. Many embodiments determine locations of start frame delimiters in packets. Several embodiments implement repeat decoding on packets of the same data to reduce packet error rates. Some embodiments are intended for indoor navigation via photogrammetry using self-identifying light anchors. In many embodiments, the data signal may be communicated via the light source at frequencies causing flicker that is not perceivable to the human eye.
Public/Granted literature
- US20140006907A1 METHODS AND ARRANGEMENTS FOR ERROR CORRECTION IN DECODING DATA FROM AN ELECTROMAGNETIC RADIATOR Public/Granted day:2014-01-02
Information query
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