Vyyo Ltd.

Other

Raul Asia

Amnon Jonas

Eric Karl Wilson

Yaron Fishler

Jack Bettan

Yonatan Manor

Hillel Akiva Hendler

Menashe Shahar

Abraham Bernstein

Oded Stern

Jehuda Ben Simon

Eddi Shensaif

Oren Mizrahi

A method for correcting for the offset carrier frequency in a wireless modem is provided. The method further allows for the periodic correction of the offset of the carrier frequency. A Fine tuning method is implemented that uses fine tuning frequency increments to determine minimum and maximum edges of a received frequency from which to calculate an offset used to adjust the transmitted frequency or the receiver of the wireless modem. Power correction is performed for variances in received signal power by adjusting an output power relative to differences in received power compared to an expected received power value.

Offset carrier frequency correction in a two-way broadband wireless access system

A system and method for controlling a transverter from a wireless modem unit (WMU). A WMU delivers a control signal to a transceiver. This signal is outside the IF signal data range (preferably below 11 MHz). The signal is carried on the cable between the transceiver and the WMU. This signal is detected by the transceiver, and determines the timing and the control information. The signal is ASK modulated to enable low data rate transfer of messages between the WMU and the transceiver. The control signal is detected at the transverter using a detector circuit. Additionally, specific transverter detection circuits are disclosed to detect the control signal.

Transverter control mechanism for a wireless modem in a broadband access system

A system and method for adaptive modulation of downstream communication between a wireless hub and a wireless modem on a selected downstream channel is provided. The adaptive modulation allows for changing the downstream modulation on a packet by packet basis. The downstream modulation is changed by specifying modulation parameters including any of a modulation format, symbol rate, and FEC for each packet. A super frame may be utilized that includes a header that specifies different modulation parameters for each of multiple data packets associated with the super frame. The modulated transmissions are sent on fixed bandwidth channels that are specified based on the bit rate of the modulated transmission.

Adaptive downstream modulation scheme for broadband wireless access systems

A system and method for remote maintenance and service of one or more wireless modems in communication with a wireless hub is provided. The system and method include the capability of the wireless hub to instruct the wireless modem(s) to change any operational parameters in order for the wireless hub to diagnose any problems with or to improve operation of the wireless mode.

Unidirectional communication scheme for remote maintenance and control in a broadband wireless access system

Growing community of inventors

Jerusalem, Israel

Raul Asia