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US 7,068,262 B2Granted
Writing stylus for electrographic position location apparatus
AssigneeLeapFrog Enterprises, Inc.
InventorsMichael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey
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Abstract
A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
Claims36
An electrographic position location apparatus comprising:
- (a) a housing comprising a surface;
- (b) an antenna under the surface;
- (c) a processor coupled to the antenna;
- (d) a stylus comprising (i) a distal end region, (ii) a proximal end region, (iii) a retractable writing element including a first end portion proximate to the distal end region and a second end portion proximate to the proximal end region;
- and (iv) a conductive annular structure having a continuous and solid side surface around at least the first end portion of the writing element, and being at the distal end region of the stylus;
- (e) a cable coupling the proximal end region of the stylus to the housing;
- and
- (f) an audio output device coupled to the processor.
5 more elements
An electrographic position location apparatus comprising:
- (a) a housing comprising a surface;
- (b) an antenna under the surface;
- (c) a processor coupled to the antenna;
- (d) a stylus comprising (i) a distal end region, (ii) a proximal end region, and (iii) a retractable writing element including a first end portion proximate to the distal end region and a second end portion proximate to the proximal end region;
- (e) a cable connecting the proximal end region of the stylus to the housing;
- and
- (f) an audio output device coupled to the processor.
4 more elements
An electrographic position location apparatus comprising:
- (a) a housing comprising a surface;
- (b) an antenna under the surface;
- (c) a processor coupled to the antenna;
- (d) a stylus comprising (i) a distal end region, (ii) a proximal end region, and (iii) a retractable, conductive writing element including a first end portion proximate to the distal end region and a second end portion proximate to the proximal end region;
- (e) a cable connecting the proximal end region of the stylus to the housing;
- and
- (f) an audio output device coupled to the processor, wherein the output device is an audio output device,
- wherein the antenna and the writing element are in electrical communication during use.
5 more elements
A method comprising:
- (a) providing a sheet on a surface of a housing of an electrographic position location apparatus, wherein an antenna is under the surface of the housing and transmits an electromagnetic signal;
- and
- (b) writing on the sheet with a stylus including a retractable, conductive writing element, wherein the transmitted signal passes through the conductive writing element;
- and
- (c) listening to an audio output in response to writing.
2 more elements
Dependencies are inferred from the claim text.