	US 12,108,219 B1
	Processing chip for processing audio signals using at least one deep neural network in a hearing device
Samuel Bucher, Rapperswil (CH); Hans-Ueli Roeck, Hombrechtikon (CH); and Fethi Cherigui, Adliswil (CH)
Assigned to Sonova AG, Staefa (CH)
Filed by SONOVA AG, Staefa (CH)
Filed on Mar. 22, 2024, as Appl. No. 18/614,362.
Claims priority of application No. 23163893 (EP), filed on Mar. 24, 2023.
Int. Cl. H04R 25/00 (2006.01)

CPC H04R 25/507 (2013.01)

15 Claims

1. A processing chip for processing audio signals using at least one deep neural network in a hearing device, wherein the processing chip comprises:

a first compute unit having a hardware architecture adapted for processing one or more convolutional neural network layers of the at least one deep neural network, and

a second compute unit having a hardware architecture adapted for processing one or more recurrent neural network layers of the at least one deep neural network, and

a control unit for directing the first compute unit and the second compute unit when to compute a respective layer of the at least one deep neural network, and

a shared memory unit for storing data to be processed in respective layers of the at least one deep neural network, and

a data bus system for providing access to the shared memory unit for each of the first compute unit and the second compute unit,

wherein the data bus system comprises a narrow bus network to the shared memory unit for the first compute unit, and a wide bus to the shared memory unit for the second compute unit.