Contents playback apparatus, control method, and electronic device
AssigneeSony Corporation
InventorsRyota Matsumoto, Yuzo Ozaki, Michiko Okano
Life of this patent
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Abstract
A contents playback apparatus includes a tubular casing, a contents playback unit disposed in the casing, an operation element rotatably disposed around the casing and axially movably disposed on the casing, a magnet disposed on the operation element, a plurality of Hall devices disposed in the casing for detecting a density of magnetic fluxes from the magnet in a contactless fashion, and a controller for determining a position of the operation element based on the density of magnetic fluxes detected by the Hall devices upon movement of the operation element, and controlling the contents playback unit to play back contents depending on the determined position of the operation element.
Claims10
A contents playback apparatus comprising:
- a tubular casing;
- a contents playback unit disposed in said casing;
- an operation element rotatably disposed around said casing and axially movably disposed on said casing;
- a magnet disposed on said operation element;
- a plurality of Hall devices disposed in said casing for detecting a density of magnetic fluxes from said magnet in a contactless fashion;
- and
- a controller for determining a position of said operation element based on the density of magnetic fluxes detected by said plurality of Hall devices upon movement of said operation element, and controlling said contents playback unit to play back contents depending on the position of said operation element.
A control method of detecting the position of an operation element rotatably disposed around a tubular casing and axially movably disposed on said tubular casing, and controlling a contents playback unit disposed in said casing to play back contents depending on the detected position of said operation element, the control method comprising the steps of:
- detecting a density of magnetic fluxes from a magnet disposed in said casing with a plurality of Hall devices disposed in said casing upon movement of said operation element;
- determining the position of said operation element based on the density of magnetic fluxes;
- and
- controlling said contents playback unit to play back contents depending on the position of said operation element.
An electronic device comprising:
- a tubular casing;
- an electronic circuit disposed in said casing;
- an operation element rotatably disposed around said casing and axially movably disposed on said casing;
- a magnet disposed on said operation element;
- a plurality of Hall devices disposed in said casing for detecting a density of magnetic fluxes from said magnet in a contactless fashion;
- and
- a controller for determining a position of said operation element based on the density of magnetic fluxes detected by said plurality of Hall devices upon movement of said operation element, and controlling said electronic circuit depending on the position of said operation element.
Dependencies are inferred from the claim text.