DEVICE AND METHOD FOR PROCESSING AUDIO DATA

• US 20160286599A1
• Filed: 03/27/2015
• Published: 09/29/2016
• Est. Priority Date: 03/27/2015
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: WEINGERTNER, PHILIPPE, PARRON, JEROME
• Granted Patent: US 9,713,192 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A device is described comprising an audio processor configured to perform audio processing during an audio communication connection between the communication device and a second communication device, a memory configured to store at least a first audio processor wakeup schedule in accordance with a first predefined audio communication connection event and a controller configured to set at least one second audio processor wakeup schedule in accordance with a second predefined audio communication connection event being similar to the first audio processor wakeup schedule, and wake up the audio processor in accordance with at least one of the first audio processor wakeup schedule or the second audio processor wakeup schedule in response to the incidence of at least one of the first or second predefined audio communication connection events, wherein the audio processor is configured to enter into a sleep mode after the audio processing is complete and to enter into a processing mode from the sleep mode in response to a wake up signal received from the controller.

Claims

1. A device, comprising:

an audio processor configured to perform audio processing during an audio communication connection between a first communication device and a second communication device;

a memory configured to store at least a first audio processor wakeup schedule in accordance with a first predefined audio communication connection event;

a controller configured to

set at least one second audio processor wakeup schedule based on a second predefined audio communication connection event being similar to the first audio processor wakeup schedule, and

send a wake up signal to the audio processor to wake up the audio processor based on at least one of the first audio processor wakeup schedule or the second audio processor wakeup schedule in response to at least one of the first or second predefined audio communication connection events;

wherein the audio processor is further configured to enter into a sleep mode after the audio processing is complete and to enter into a processing mode from the sleep mode in response to the wake up signal.

2. The device of claim 1, wherein the first predefined audio communication connection event is a start of processing of audio data to be transmitted to the second communication device and the second predefined audio communication connection is a start of processing of audio data received from the second communication device.

3. The device of claim 2, wherein the audio processor is configured to perform the processing of the audio data received from the second communication device in a shorter time than the processing of the audio data to be transmitted to the second communication device and wherein setting the at least one second audio processor wakeup schedule being similar to the first audio processor wakeup schedule comprises scheduling the processing of the audio data received from the second communication device to be carried out by the application processor during the processing of the audio data to be transmitted to the second communication device.

4. The device of claim 1, wherein the first predefined audio communication connection event is a radio transmission of audio data to the second communication device and the second predefined audio communication connection is a start of processing of audio data to be transmitted to the second communication device.

5. The device of claim 1, wherein the first predefined audio communication connection event is a radio reception of audio data from the second communication device and the second predefined audio communication connection is a start of processing of audio data received from the second communication device.

6. The device of claim 1, wherein the audio processing is an audio processing of audio data to be transmitted to the second communication device and comprises at least one of encoding of audio data from an audio source and forming packets of encoded audio data.

7. The device of claim 1, wherein the audio processing is an audio processing of audio data received from the second communication device and comprises at least one of extracting encoded audio data from packets of encoded audio data and decoding encoded audio data.

8. The device of claim 1, wherein setting the at least one second audio processor wakeup schedule being similar to the first audio processor wakeup schedule comprises setting wakeups according to the at least one second audio processor wakeup schedule to be within a predetermined tolerance of the first audio processor wakeup schedule.

9. The device of claim 8, wherein the predetermined tolerance is 2%, 5%, 10% or 15% of the time between adjacent wakeups according to the first audio processor wakeup schedule.

10. The device of claim 1, wherein the audio processing is processing of voice call data.

11. The device of claim 1, wherein the audio communication connection is a Voice over IP audio communication connection.

12. The device of claim 1, wherein the audio communication connection is a Voice over LTE audio communication connection.

13. The device of claim 1, wherein setting the at least one second audio processor wakeup schedule being similar to the first audio processor wakeup schedule includes shifting the at least one second audio processor wakeup schedule from a position according to which the audio processor was waked up previously during the audio communication connection to a position being similar to the first audio processor wakeup schedule.

14. The device of claim 13, wherein the controller is configured to search for a silence period during the audio communication connection and perform the shift during a silence period found.

15. The device of claim 13, wherein the controller is configured to perform the shift by scaling or discarding audio data.

16. The device of claim 1, wherein the controller is configured to determine a difference between the wakeup timings of the at least one second audio processor wakeup schedule and the wakeup timings of the first audio processor wakeup schedule and wherein setting the at least one second audio processor wakeup schedule being similar to the first audio processor wakeup schedule includes shifting the at least one second audio processor wakeup schedule to reduce the difference between the wakeup timings of the at least one second audio processor wakeup schedule and the wakeup timings of the first audio processor wakeup schedule.

17. The device of claim 16, wherein the controller is configured to determine the difference during the audio communication connection.

18. A method for processing audio data comprising:

storing at least a first audio processor wakeup schedule based on a first predefined audio communication connection event;

setting at least one second audio processor wakeup schedule based on a second predefined audio communication connection event being similar to the first audio processor wakeup schedule,

sending a wake up signal to an audio processor to wake up the audio processor and to perform audio processing during an audio communication connection between a first communication device and a second communication device, based on at least one of the first audio processor wakeup schedule or the second audio processor wakeup schedule in response to the at least one of the first or second predefined audio communication connection events;

wherein the audio processor enters a sleep mode after the audio processing is complete and enter into a processing mode from the sleep mode in response to receiving the wake up signal.

20. A computer readable medium having recorded instructions thereon which, when executed by a processor, make the processor perform a method for processing audio data according to claim 18.

19. A method to trade-off application processor power consumption and application processor processing latencies, modem power consumption and modem processing latencies in a mobile communication device, so that globally, at the platform level, an optimal and adaptive scheduling of audio application processor uplink and downlink activities versus radio modem transmission and reception activities can be used to optimize performances in terms of power consumption and latency as per policies which are predefined, configurable or both, without creating audio artifacts during the scheduling changes.