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:
Sep. 10, 1996
Filed:
Feb. 02, 1995
U.S. Philips Corporation, New York, NY (US);
Abstract
The system comprises a plurality of objects such as lamps (11-15), venetian blinds (16, 17) and air-conditioning appliances (18) and a hand-held infrared remote control unit (40) for transmitting control signals. A separate receiver (21-28) is allocated to each one of the objects (11-18) and the transmitter of the remote control unit (40) transmits the control signals in a relatively narrow transmission beam (42). An object is selected by directing the portable transmitter (40) towards this object. Consequently, the user does not need to give a further indication of the object and the system can be operated in a simple manner. Less frequent communication with the system is possible via a separate interface unit (70). Specific objects can only be operated by certain users by transmitting an identification code along with the control signal. The identification code can also be used for the purpose of localization and for access control.