Analog-to-digital conversion apparatus
AssigneeCasio Computer Co., Ltd.
InventorJunichi Sugiyama
Life of this patent
Estimating the term…
Abstract
An analog-to-digital conversion apparatus includes a controller. The controller is configured to execute first control processing to cause the selection circuit of each of the circuit sets to perform switching which involves cyclically changing an analog signal to be selected at sampling timings with a predetermined time difference, and second control processing to calculate a digital data item at a reference sampling timing for each of the analog signals based on digital data items obtained from the analog-to-digital converter of the plurality of circuit sets, in accordance with the digital data items with the predetermined time difference, the sampling timings, and the time difference.
Claims9
An analog-to-digital conversion apparatus comprising:
- a plurality of circuit sets, each including a selection circuit configured to select and output one of three or more input analog signals, and an analog-to-digital converter configured to convert the analog signal output from the selection circuit to digital data, the circuit sets being fewer in number than the input analog signals;
- and
- a controller,
- the controller being configured to execute:
- first control processing to cause the selection circuit of each of the circuit sets to perform switching which involves cyclically changing an analog signal to be selected at sampling timings with a predetermined time difference, and
- second control processing to calculate a digital data item at a reference sampling timing for each of the analog signals based on a plurality of digital data items obtained from the analog-to-digital converter of the plurality of circuit sets, in accordance with the digital data items with the predetermined time difference, the sampling timings, and the time difference.
An analog-to-digital conversion method applicable to an analog-to-digital conversion apparatus including:
- a plurality of circuit sets, each including a selection circuit configured to select and output one of three or more input analog signals, and an analog-to-digital converter configured to convert the analog signal output from the selection circuit to digital data, the circuit sets being fewer in number than the input analog signals, the method comprising:
- first control processing to cause the selection circuit of each of the circuit sets to perform switching which involves cyclically changing an analog signal to be selected at sampling timings with a predetermined time difference, and
- second control processing to calculate a digital data item at a reference sampling timing for each of the analog signals based on a plurality of digital data items obtained from the analog-to-digital converter of the plurality of circuit sets, in accordance with the digital data items with the predetermined time difference, the sampling timings, and the time difference.
A non-transitory computer-readable storage medium having a program stored thereon which controls a computer of an analog-to-digital conversion apparatus including:
- a plurality of circuit sets, each including a selection circuit configured to select and output one of three or more input analog signals, and an analog-to-digital converter configured to convert the analog signal output from the selection circuit to digital data, the circuit sets being fewer in number than the input analog signals, to perform functions comprising:
- first control processing to cause the selection circuit of each of the circuit sets to perform switching which involves cyclically changing an analog signal to be selected at sampling timings with a predetermined time difference, and
- second control processing to calculate a digital data item at a reference sampling timing for each of the analog signals based on a plurality of digital data items obtained from the analog-to-digital converter of the plurality of circuit sets, in accordance with the digital data items with the predetermined time difference, the sampling timings, and the time difference.
Dependencies are inferred from the claim text.