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US 8,621,256 B2Granted
Signal processing device, signal processing method, and program
AssigneeSony Corporation
InventorYosihiro Minami
Life of this patent
Estimating the term…
Abstract
There is provided a signal processing device which is capable of suppressing the influence of a digital data process on an analog signal process without completely stopping a digital data processing circuit. A signal processing device includes an analog signal processing circuit, a digital data processing circuit, a determination section configured to determine an influence of the digital data processing circuit on the analog signal processing circuit, and a control section configured to stop a partial circuit of the digital data processing circuit or lower processing capability thereof in response to a determination result of the determination section.
Claims14
A signal processing device comprising:
- an analog signal processing circuit;
- a digital data processing circuit;
- a determination section configured to determine an influence of the digital data processing circuit on the analog signal processing circuit;
- and
- a control section configured to stop a partial circuit of the digital data processing circuit or lower processing capability thereof in response to a determination result of the determination section;
- wherein the digital data processing circuit includes a plurality of data processing circuits configured to perform data processes independent of each other,
- wherein the determination section determines an influence of each data processing circuit on the analog signal processing circuit,
- wherein the control section stops a partial data processing circuit of the plurality of data processing circuits and a data processing circuit determined to influence the analog signal processing circuit or lowers processing capability thereof, and
- wherein the determination section is adapted to:
- obtain an influence level of each data processing circuit by acquiring state information of each data processing circuit;
- acquire state information of the analog signal processing circuit;
- obtain an influence level corresponding to a state of the signal processing device by acquiring state information of the signal processing device;
- obtain an influence level of the entire digital data processing circuit on the analog signal processing circuit using the influence level corresponding to the state of the signal processing device, the influence level of each data processing circuit, and the state information of the analog signal processing circuit;
- and
- determine that the digital data processing circuit has an influence when the influence level of the entire analog signal processing circuit exceeds a limit value.
12 more elements
A signal processing device comprising:
- an analog signal processing circuit;
- a digital data processing circuit;
- a determination section configured to determine an influence of the digital data processing circuit on the analog signal processing circuit;
- and
- a control section configured to stop a partial circuit of the digital data processing circuit or lower processing capability thereof in response to a determination result of the determination section;
- wherein the digital data processing circuit includes a plurality of data processing circuits configured to perform data processes independent of each other,
- wherein the determination section determines an influence of each data processing circuit on the analog signal processing circuit,
- wherein the control section stops a partial data processing circuit of the plurality of data processing circuits and a data processing circuit determined to influence the analog signal processing circuit or lowers processing capability thereof,
- wherein the determination section is adapted to:
- obtain an influence level of each data processing circuit by acquiring state information of each data processing circuit;
- acquire state information of the analog signal processing circuit;
- obtain an influence level corresponding to a state of the signal processing device by acquiring state information of the signal processing device;
- obtain an influence level of the entire digital data processing circuit on the analog signal processing circuit using the influence level corresponding to the state of the signal processing device, the influence level of each data processing circuit, and the state information of the analog signal processing circuit;
- and
- determine that the digital data processing circuit has an influence when the influence level of the entire analog signal processing circuit exceeds a limit value,
- wherein the signal processing device further comprises an analog circuit connected to the analog signal processing circuit, wherein the analog circuit includes a plurality of image capturing elements and outputs analog signals of images captured by the plurality of image capturing elements to the analog signal processing circuit, and
- wherein the determination section further determines an influence of the digital processing circuit on the analog circuit by determining an influence on dark output characteristics of the plurality of image capturing elements.
14 more elements
Dependencies are inferred from the claim text.