US 11,659,466 B2
Seamless playback and switching for wireless communications devices
Krishna Kishore Avadhanam, Bangalore (IN); Ashish Kumar Malot, Bangalore (IN); and Robert Zopf, Rancho Santa Margarita, CA (US)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Feb. 24, 2021, as Appl. No. 17/184,441.
Claims priority of provisional application 62/981,389, filed on Feb. 25, 2020.
Prior Publication US 2021/0266808 A1, Aug. 26, 2021
Int. Cl. H04W 36/30 (2009.01); H04W 36/00 (2009.01)
CPC H04W 36/30 (2013.01) [H04W 36/0022 (2013.01); H04W 36/0083 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
establishing a first wireless connection between a source device and a sink device, the first wireless connection using a first transmission protocol;
establishing a second wireless connection and setting a second transceiver associated with the second wireless connection to a power save mode;
transmitting audio data via the first wireless connection;
determining, using a processing device, a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection;
setting the second transceiver and second wireless connection to an active mode; and
switching to the second wireless connection using a second transmission protocol, and the switching comprising beginning encapsulation of data packets for transmission in accordance with the second transmission protocol, wherein the data packets comprise Bluetooth Audio/Video Remote Control Profile (A2DP) data packets each encapsulated in a data packet of the second transmission protocol.