US Patent No. 10,117,203

METHOD AND APPARATUS FOR SYNCHRONIZING HEARING INSTRUMENTS VIA WIRELESS COMMUNICATION


Patent No. 10,117,203
Issue Date October 30, 2018
Title Method And Apparatus For Synchronizing Hearing Instruments Via Wireless Communication
Inventorship Jon S. Kindred, Minneapolis, MN (US)
Tao Zhang, Eden Prairie, MN (US)
Ivo Merks, Eden Prairie, MN (US)
Jeffrey Paul Solum, Greenwood, MN (US)
Mihran H Touriguian, Eden Prairie, MN (US)
Assignee Starkey Laboratories, Inc., Eden Prairie, MN (US)

Claim of US Patent No. 10,117,203

1. A system for communication between hearing instruments, comprising:a first hearing instrument configured to be a master device including:
a master clock;
a master synchronization circuit configured to generate master time stamps for specified master device events using the master clock; and
a master device radio circuit configured to transmit the master time stamps via a plurality of wireless link; and
a plurality of second hearing instruments each configured to be a slave device including:
a slave device radio circuit configured to receive the master time stamps via a wireless link of the plurality of wireless links;
a slave clock; and
a slave synchronization circuit configured to generate slave time stamps for specified slave device events using the slave clock, to calculate one or more offset parameters indicative of an offset between the master clock and the slave clock using the master time stamps and the slave time stamps, to compare the one or more offset parameters each to a specified offset threshold, and to adjust the slave clock for synchronizing the slave clock to the master clock using the one or more offset parameters in response to at least one offset parameter of the one or more offset parameters exceeding the corresponding specified offset threshold.