Patent ID: 11935541
Assignee: CIRRUS LOGIC INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A system for performing speech recognition, comprising:
a first device and a second device,
wherein the first device comprises:
an input for receiving an audio signal representing speech;
a processor for performing a first data integrity check operation on the received audio signal, the second data integrity check operation comprising calculating a second hash value from the received audio signal using the same method that is used by the first data integrity check operation; and
an interface for forwarding the received audio signal to the second device, and for forwarding the first hash value calculated in the first data integrity check operation to the second device; and
wherein the second device comprises:
an interface for receiving the audio signal forwarded from the first device, and for receiving the first hash value calculated in the first data integrity check operation forwarded from the first device, the second data integrity check operation comprising calculating a second hash value from the received audio signal using the same method that is used by the first data integrity check operation; and
a processor for performing a second data integrity check operation on the audio signal forwarded from the first device, performing a speech recognition function on the audio signal forwarded from the first device and determining if the second hash value calculated in the second data integrity check operation matches the first hash value calculated in the first data integrity check operation forwarded from the first device;
wherein the system is configured to use a result of performing the speech recognition function on the audio signal forwarded from the first device only if the second hash value calculated in the second data integrity check operation matches the first hash value calculated in the first data integrity check operation forwarded from the first device.