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:
Jan. 12, 2021
Filed:
Jan. 30, 2018
British Telecommunications Public Limited Company, London, GB;
Hamid Gharib, London, GB;
Mohammad Zoualfaghari, London, GB;
British Telecommunications Public Limited Company, London, GB;
Abstract
A spread spectrum system is used for transmitting data to devices in a distributed system. Each device has a respective spread spectrum code, and has a corresponding encoder in a central control system operating the same spread spectrum codes, the encoded data relating to the devices being aggregated over a shared channel. An additional broadcast spread spectrum coding sequence is allocated to a broadcast channel readable by a plurality of the devices using a command extraction function and used to transmit general commands for operation by the plurality of devices. Individual actuators may be arranged to respond in different ways to such a broadcast command, for example switching some on and switching others off. The broadcast may also be used to change the coding sequences allocated to individual devices, allowing flexible use of the available spread-spectrum coding sequences.