Digital amplifier
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 10, 2015
Grant Date -
Jan 24, 2013
app pub date -
Feb 7, 2011
filing date -
Feb 7, 2011
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A digital amplifier comprises: a switching unit that amplifies a signal input to the digital amplifier by performing a switching operation; a driving unit that turns the switching unit on and off; an input signal detection unit that detects an input signal to the digital amplifier; and a first control unit that performs control such that the switching unit starts a switching operation by starting driving of the driving unit, when the digital amplifier is changed to a signal input state and the input signal detection unit detects an input signal, and performs control such that the switching unit stops the switching operation by stopping the driving of the driving unit, when the digital amplifier is changed to a no signal input state and the input signal detection unit does not detect an input signal. This configuration enables to reduce power consumption when no signal is input.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- PANASONIC CORPORATION;ROLAND CORPORATION
International Classification(s)

- 2011 Application Filing Year
- H03F Class
- 880 Applications Filed
- 635 Patents Issued To-Date
- 72.16 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Maeda, Yoshiki | Shizuoka, JP | 34 | 283 |
# of filed Patents : 34 Total Citations : 283 | |||
Niwayama, Shigeki | Shizuoka, JP | 2 | 15 |
# of filed Patents : 2 Total Citations : 15 | |||
Sasaki, Hisayuki | Fukuoka, JP | 7 | 81 |
# of filed Patents : 7 Total Citations : 81 | |||
Sugawara, Hiroshi | Fukuoka, JP | 118 | 1393 |
# of filed Patents : 118 Total Citations : 1393 | |||
Takano, Toshimi | Shizuoka, JP | 2 | 15 |
# of filed Patents : 2 Total Citations : 15 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- H03F Class
- 0 % this patent is cited more than
- 11 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 23, 2026 |
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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 |
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Jul 07, 2011 | P | Published | |
Nov 09, 2010 | F | Filing | |
Nov 08, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BUSHONG, JAMES;SARIR, EMMANUEL M.;REEL/FRAME:025340/0893 Owner name: CARBO-UA LIMITED, CALIFORNIA Effective Date: Nov 08, 2010 |
Nov 11, 2009 | PD | Priority Date |

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