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:
Nov. 25, 1997
Filed:
Mar. 17, 1995
Mark Daryl Devon, San Jose, CA (US);
Apple Computer, Inc., Cupertino, CA (US);
Abstract
A method and apparatus for detecting and indicating a collision on a wireless channel are provided. According to the method, data is transmitted over the wireless channel using pulse position modulation. The channel is monitored during each pulse position modulation frame to determine whether a pulse occurs during more than one pulse window of the pulse position modulation frame. If a pulse occurs during more than one pulse window of a pulse position modulation frame, then the devices on the wireless channel determine that a collision has occurred. A transceiver is disclosed for connecting a device to a wire-based network via a wireless connection. The device and transceiver communicate over the wireless connection using pulse position modulation. If a collision occurs on the wire-based network, then the transceiver transmits to the device a signal in which pulses are asserted during more than one pulse window of a pulse position modulation frame. The signal, which violates standard pulse position modulation rules, indicates to the device that a collision occurred.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile