Qualcomm Incorporated

Boaz E Bryger

Jeremy M Stein

Sergio Kolor

Michael Green

Baruch Eruchimovitch

Noam Dagan

An acoustic system, which may be ultrasonic, operates in a power efficient idle mode thereby reducing the power consumption required by high frequency sampling and processing. While in idle mode, an acoustic receiver device operates with an idle sampling rate that is lower than the full sampling rate used during full operational mode, but is capable of receiving a wake-up signal from the associated acoustic transmitter. When the wake-up signal is received, the acoustic receiver switches to full operational mode by increasing the sampling rate and enables full processing. The acoustic system may be used in, e.g., an ultrasonic pointing device, location beacons, in peer-to-peer communications between devices, as well as gesture detection.

Ultrasound based mobile receivers in idle mode

A method for performing a soft handoff, including establishing a first control channel via a network between a first BSC and a first BTS. The method also includes establishing a second control channel via the network between a second BSC and a second BTS. A call between a mobile station (MS) and the first BTS is established, and while the call continues an indication is sent to the first BSC that the MS has received a signal from the second BTS. In response to the indication, a trigger is conveyed from the first BSC to the second BTS, and, in response to receiving the trigger at the second BTS, further traffic associated with the call is directed between the MS, the second BTS, and the first BSC, without conveying the further traffic through the second BSC.

Growing community of inventors

Zikhron Yaaqov, Israel

Boaz E Bryger