Reproducing device and reproducing method
AssigneeD&M Holdings, Inc.
InventorKazuhiro Onizuka
Life of this patent
Estimating the term…
Abstract
A reproduction device, contains a rotatable operation disk part for performing an input related to reading of data stored in a memory and a capacitance sensor section for outputting a sensor value expressing a change of a capacitance according to depression of the rotatable operation disk part. The device also contains a storage part for storing a reference value corresponding to the sensor value obtained while the rotatable operation disk part is not depressed, and a control part for judging presence/absence of pressing on the rotatable operation disk part based on a vector quantity being a relative value obtained from a difference between the sensor value output from the capacitance sensor section and the reference value stored in the storage part.
Claims12
A reproduction device, comprising:
- a rotatable operation disk part, structured by an annular disk-shaped member, for performing an input related to reading of data stored in a memory;
- a capacitance sensor section configured to output a sensor value expressing a change of a capacitance according to depression of the rotatable operation disk part, wherein the capacitance sensor section contains at least one sensor pattern;
- a storage part configured to store and update a reference value corresponding to the sensor value obtained while the rotatable operation disk part is not depressed;
- and
- a control part configured to judge presence/absence of pressing on the rotatable operation disk part, wherein the control part calculates a relative value change and an absolute value change, each change based on a difference between the reference value previously stored in the storage part and the outputted sensor value, wherein the relative value represents a value obtained by converting the sensor value into a vector quantity and the absolute value represents a value obtained directly from the sensor value.
A reproduction method performed by using a controller comprising a rotatable operation disk part for performing an input related to reading of data stored in a memory, the reproduction method comprising the steps of:
- acquiring a sensor value expressing a change of a capacitance according to depression of the rotatable operation disk part;
- calculating a relative value change and an absolute value change, each change based on a difference between a reference value corresponding to the sensor value obtained while the rotatable operation disk part is not depressed, wherein the reference value is previously stored, and the acquired sensor value, wherein the relative value represents a value obtained by converting the sensor value into a vector quality and the absolute value represents a value obtained directly from the sensor value;
- judging presence/absence of pressing on the rotatable operation disk part based on the calculated relative value;
- and
- updating the reference value.
Dependencies are inferred from the claim text.