US Patent Issued to Combined Conditional Access Development and Support on Feb. 24 for "Device pairing and authentication" (California Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,922, issued on Feb. 24, was assigned to Combined Conditional Access Development and Support LLC (Philadelphia).

"Device pairing and authentication" was invented by Lawrence W. Tang (San Diego) and Douglas M. Petty (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for system component pairing and authentication are described. A challenge message is transmitted to a device. A reply message is received from the device in response to the challenge message. A length of time between transmitting the challenge message and receiving the reply message is determined. The length of time between transmitting the challenge message and receiving t...