Ensure Technologies, Inc.

Thomas D Xydis

A method of synchronizing wireless communication between computer ( ) having a transmitter ( ) and a peripheral device ( ) having an amplitude modulated (AM) receiver ( ) and at least one frequency modulated (FM) receiver ( ) which communicates via radio frequency signals. The computer ( ) partitions the data ( ) into a plurality of data blocks ( ), spreads the data blocks ( ) over a plurality of frequency channels ( ) within a predetermined range ( ), and selects one of the channels ( ) for transmitting the signal ( ). The resulting signal ( ) has increased and decreased frequency corresponding to the data block ( ). The peripheral device ( ) detects the signal ( ) as being present and begins measuring a time period ( ) with the AM receiver ( ). The method is characterized by scanning the plurality of frequency channels ( ) with the FM receiver ( ) during the measured time period ( ). Additionally, the FM receiver ( ) produces an output voltage ( ) indicative of the radio frequency channel ( ) in response to detecting the signal ( ). The peripheral device ( ) utilizes the output voltage ( ) to select a narrow range of frequency channels ( ) during the time period ( ) to detect the signal ( ) from the computer ( ).

Synchronization of wireless communication between devices

A method of detecting a signal (,&prime;) between a token (,) and an electronic device (,) for authorizing a user (,) to access the electronic device (,). The method comprises the steps of emitting a signal (,&prime;) containing data, detecting the signal (,&prime;) with a plurality of antennas (,&prime;), and measuring the strength of the signal (,&prime;) detected at each of the antennas (,&prime;). If the maximum signal strength detected by any of the antennas (,&prime;) is above an operational threshold, the electronic device (,) will be enabled. If the signal (,&prime;) is above the operational threshold, the signal (,&prime;) is compared to a user code database for authorizing the user (,) to access the electronic device (,). The operational threshold may be lowered to account for any signal variances that may occur after the user (,) has been authorized to access or when accessing the electronic device (,).

Growing community of inventors

Ann Arbor, MI, United States of America

Thomas D Xydis