Audio processing apparatus and method having echo canceling mechanism
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Dec 24, 2024
Grant Date -
Feb 15, 2024
app pub date -
Dec 14, 2022
filing date -
Dec 14, 2022
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
An audio processing apparatus having an echo canceling mechanism is provided. An audio transmission circuit receives an input digital audio signal from an external device. A DAC circuit performs conversion according to the input digital audio signal to generate an output analog audio signal to an external display device for power amplification and playback. An ADC circuit performs analog-to-digital conversion on an amplified signal generated by a power amplification circuit and a received audio signal generated by an audio receiving device to generate an amplified digital signal and a received digital audio signal. A processor implements an echo canceling algorithm to perform echo cancellation according to the amplified digital signal and the received digital audio signal to generate an output digital audio signal to be transmitted to the external device through the audio transmission circuit.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIGMASTAR TECHNOLOGY LTD | 16F NO 1 HOZAN RD TONG'AN DISTRICT XIAMEN FUJIAN |
International Classification(s)

- 2022 Application Filing Year
- H03M Class
- 1388 Applications Filed
- 948 Patents Issued To-Date
- 68.30 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Liu, Jie | Fujian, CN | 812 | 14130 |
# of filed Patents : 812 Total Citations : 14130 | |||
Wang, Jin-Tao | Fujian, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- H03M Class
- 0 % this patent is cited more than
- 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 24, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 24, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 24, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Apr 08, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Oct 06, 2020 | P | Publication | |
Sep 16, 2020 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 01, 2020 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Nov 04, 2019 | STCV | INFORMATION ON STATUS: APPEAL PROCEDURE | free format text: NOTICE OF APPEAL FILED |
Jul 25, 2019 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: FINAL REJECTION MAILED |
Apr 27, 2019 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
Jan 16, 2019 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Feb 08, 2018 | P | Published | |
Aug 16, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAFIEE, MICHAEL EHSAN;REEL/FRAME:039457/0751 Owner name: SENSUS USA, INC., NORTH CAROLINA Effective Date: Aug 16, 2016 |
Aug 02, 2016 | F | Filing |

Matter Detail

Renewals Detail
