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:
Apr. 12, 2005
Filed:
Mar. 21, 2002
Nagesh Challa, Saratoga, CA (US);
Venkata T. Gobburu, San Jose, CA (US);
Michel E. Gannage, Los Altos, CA (US);
Nagesh Challa, Saratoga, CA (US);
Venkata T. Gobburu, San Jose, CA (US);
Michel E. Gannage, Los Altos, CA (US);
ecrio, inc., Cupertino, CA (US);
Abstract
A system, method, and apparatus for communicating information in a light-based signal utilizing a fob device is disclosed. One method disclosed includes encoding transmission information data into a bar code format; generating a signal from the bar code format to simulate a reflection of a scanning beam being moved across a static visual image of the bar code format; and actively transmitting the signal as light pulses from the fob device. Alternatively, commercial information data may be transmitted to a light-based data receiving device by generating a signal from commercial information data and actively transmitting the signal as light pulses from a fob device. Transmission information data may also be transmitted from a fob device by generating a first signal from a first encoded format; generating a second signal from a second encoded format; transmitting the first signal as light pulses from a fob device; and transmitting the second signal from the fob device.