Image Pickup Processing Unit Power Reduction via Interval Control
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Solution Overview
Problem
High-definition image pickup apparatuses face challenges in reducing power consumption while maintaining high-speed image capture, as increased resolution and operation speed lead to heat generation and battery limitations, with existing methods failing to effectively lower power consumption without compromising recordable time and image quantity.
Innovation Solution
The apparatus incorporates an image pickup processing unit that can switch between standby ON and OFF states using an interval control unit, controlled by a system control unit, to reduce power consumption during live view operations, allowing for high-definition moving image capture without decreasing recordable time or image quantity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the operation clock frequency is increased to achieve high-definition moving image quality, then the readout speed and resolution are improved, but the power consumption increases
Solution Approach 1:
The patent applies periodic action by alternately switching the image pickup device between operation states and standby states. The interval control circuit controls the device to operate for a first period, then enter standby for a second period, creating a cyclic on-off pattern that reduces average power consumption while maintaining high-speed capture capability when needed.
2Measurement precision
If the operation clock frequency is increased to achieve high-definition moving image quality, then the resolution is improved, but the power consumption increases
Solution Approach 1:
The patent applies periodic action by alternately switching the image pickup device between operation states and standby states. The interval control circuit controls the device to operate for a first period, then enter standby for a second period, creating a cyclic on-off pattern that reduces average power consumption while maintaining high-speed capture capability when needed.
3Productivity
If the image pickup device operates continuously at high speed, then high-definition moving images can be captured, but the recordable time decreases due to battery limitations
Solution Approach 1:
The patent applies periodic action by alternately switching the image pickup device between operation states and standby states. The interval control circuit controls the device to operate for a first period, then enter standby for a second period, creating a cyclic on-off pattern that reduces average power consumption while maintaining high-speed capture capability when needed.
Solution Approach 2:
The patent applies dynamics by making the operation state and standby state switchable based on timing signals. The interval control circuit dynamically transitions the image pickup device between operational and low-power states, allowing the system to adapt its power consumption level while maintaining the capability to operate at high speed when required.
4Productivity
If the image pickup device operates continuously at high speed, then high-definition moving images can be captured, but heat generation increases
Solution Approach 1:
The patent applies periodic action by alternately switching the image pickup device between operation states and standby states. The interval control circuit controls the device to operate for a first period, then enter standby for a second period, creating a cyclic on-off pattern that reduces average power consumption while maintaining high-speed capture capability when needed.
Data Source
AI summary
An image pickup apparatus that can reduce power consumption of the image pickup apparatus, and take high-definition moving images at high speed without bringing about decreases in recordable time and the number of still images taken. An image pickup processing unit is operated in a plurality of operation modes, and has an image pickup device and a plurality of processing units that process image pickup signals outputted from the image pickup device. An interval control circuit causes the image pickup processing unit to switch between a standby ON state and a standby OFF state in predetermined timing. A control signal is outputted to the interval control unit according to an operation mode of the image pickup processing unit. When the image pickup processing unit lies in a predetermined operation mode, a control signal for causing the interval control circuit to perform the switching is outputted to the interval control circuit.