Reduction of Haptic Noise Feedback in System

• US 20140119569A1
• Filed: 10/29/2012
• Published: 05/01/2014
• Est. Priority Date: 10/29/2012
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Schuckle, Richard W., Peeler, Douglas J.
• Granted Patent: US 9,319,150 B2
• Time in Patent Office: Days
• US Class Current: 381/94.1
• CPC Class Codes: F16F 15/00 Suppression of vibrations in systems damping of non-rotary systems using inertia effect F16F7/10; prevention or isolation of vibrations in machine tools B23Q11/0032; suppression of driveline vibrations in hybrid vehicle transmissions B60W30/20 ; vehicle seat suspension devices B60N2/50; methods or devices for protecting against, or damping of, acoustic waves, e.g. sound G10K11/16; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion vibration absorbing or balancing means for aircraft propellers B64C11/008, for rotorcraft rotors B64C27/001 ; testing static and dynamic balance of machines or structures G01M1/00
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G10K 2210/1291 Anti-Vibration-Control, e.g. reducing vibrations in panels or beams
• CPC Class Codes: G10K 2210/3032 Harmonics or sub-harmonics
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones

Abstract

An information handling system has a haptic generation module to generate haptic effects including haptic noise and a haptic noise reduction module. The haptic noise reduction module receives characteristics of sound representative of haptic noise generated by a haptic generation module of a device and entering an audio input module of the device, the characteristics including frequencies and timing. It also detects the generation of haptic effects, the generations occurring after the receiving characteristics. It also reduces the effects of haptic noise on digital data representing audio input to the device based upon the received characteristics of the sound. It may reduce the effects by subtracting amplitudes of audio waves representing the haptic noise from amplitudes of audio waves representing the audio input.

Claims

1. An information handling system comprising:

a haptic generation module to generate haptic effects including haptic noise; and

an audio input module to capture audio input and to produce digital data representing the audio input, including;

a haptic noise reduction module to;

receive characteristics of sound representative of haptic noise entering the audio input module, the characteristics including frequencies and timing;

detect generations of haptic effects, the generations occurring after the characteristics are received; and

reduce effects of haptic noise on the digital data based upon the received characteristics of the sound.

2. The information handling system of claim 1 wherein the detection comprises the haptic noise reduction module receiving notice of the generation of haptic effects.

3. The information handling system of claim 2 wherein the detection comprises the haptic noise reduction module receiving notice from the haptic generation module of the generation of haptic effects.

4. The information handling system of claim 2 wherein:

a haptic command module is to command the haptic generation module to commence the generation of haptic effects; and

the detection comprises the haptic noise reduction module receiving notice from the haptic command module of the generation of haptic effects.

5. The information handling system of claim 2 wherein:

the haptic generation module generating haptic effects including haptic noise comprises the haptic generation module generating a first type of haptic noise and a second type of haptic noise;

the haptic noise reduction module receiving characteristics of sound comprises the haptic noise reduction module receiving characteristics of sound representative of the first type of haptic noise and the second type of haptic noise; and

the haptic noise reduction module receiving notice of the generation of haptic effects comprises the haptic noise reduction module receiving notice of the generation of haptic effects and notice of which of the two types of haptic noise is being generated.

6. The information handling system of claim 1 wherein:

the information handling system comprises;

a codec to convert electrical impulses representing the audio input into digital data; and

a codec controller to control the codec; and

the reducing effects of haptic noise comprises the codec controller issuing commands to the codec.

7. The information handling system of claim 1 wherein:

the audio input module comprises a haptic noise recognition module to recognize a characteristic signature of the haptic noise generated by the haptic generation module; and

the haptic noise recognition module is to notify the haptic noise reduction module on the generation of haptic noise.

8. A method comprising:

determining characteristics of haptic noise generated by a haptic generation component of a computing device and entering an audio input module of the computing device, the characteristics including frequencies and timing;

receiving an audio input stream;

generating haptic noise;

detecting generation of haptic effects after the receiving characteristics; and

reducing effects of the haptic noise on the digital data based upon the characteristics of the haptic noise.

9. The method of claim 8 wherein:

the determining comprises determining characteristics of a first type of haptic noise and a second type of haptic noise;

the detecting comprises detecting the generation of haptic effects and identifying a type of the generated haptic noise as the first type of haptic noise or the second type of haptic noise; and

the reducing comprises reducing effects of haptic noise on the digital data based upon the characteristics of the identified type of haptic noise.

10. The method of claim 8 wherein the determining characteristics comprises determining characteristics experimentally.

11. The method of claim 10 wherein the determining characteristics experimentally comprises performing experiments on other computing devices similar to the computing device and not performing experiments on the computing device.

12. The method of claim 8 wherein the determining characteristics comprises determining characteristics based on modeling the traversal of haptic noise through the computing device into the audio input of the computing device.

13. The method of claim 12 wherein the modeling comprises modeling a traversal of haptic noise through a chassis of the computing device and through a printed circuit board of the computing device.

14. The method of claim 12 wherein:

the audio input module of the computing device includes an omni-directional microphone; and

the modeling comprises modeling the omni-directional microphone capturing haptic noise directed to a user, the captured haptic noise thereby entering the audio input module.

15. The method of claim 14 wherein the modeling further comprises modeling a traversal of haptic noise through a chassis of the computing device and through a printed circuit board of the computing device.

16. The method of claim 8 wherein the reducing comprises differentiating between haptic noise in a range of voice frequency and haptic noise outside of the range of voice frequency.

17. A haptic noise reduction module comprising:

a processor; and

memory storing instructions that, when executed by the processor, perform a method including;

receiving characteristics of sound representative of haptic noise generated by a haptic generation module of a device and entering an audio input module of the device, the characteristics including frequencies and timing;

detecting generations of haptic effects, the generations occurring after the characteristics are received; and

reducing effects of haptic noise on digital data representing audio input to the device based upon the received characteristics of the sound.

18. The haptic noise reduction module of claim 17 wherein the detection comprises the haptic noise reduction module receiving notice of the generation of haptic effects.

19. The haptic noise reduction module of claim 17 wherein the detection comprises the haptic noise reduction module receiving notice from the haptic generation module of the generation of haptic effects.

20. The haptic noise reduction module of claim 17 wherein:

the audio input module comprises a haptic noise recognition module to recognize a characteristic signature of haptic noise; and

the detecting comprises the haptic noise recognition module signaling the haptic noise reduction module on the generation of haptic noise.