US4764763A — Electronic sketching device

Claim 1

Independent Claim 305 words

A dedicated portable electronic sketching and animation toy, comprising: a display device for displaying sketches and animation on a display area; manually actuatable movement means for moving a cursor on the display area; storage means selectively coupleable to the display device for storing a plurality of sketches; sketch control means coupled to the manually actuatable movement means and storage means for selectively storing and erasing the placements of the cursor in the storage means to create and modify a sketch visible in the display area and stored in the storage means; manually actuatable sketch selection means coupled to the storage means for selecting a stored sketch for display on the display area and modification by the sketch control means and for selecting a stored sketch for addition to a stored sequence of sketches; manually actuatable sketch copying means for copying a selected stored sketch without erasing said selected sketch from the storage means, for display in the display area and modification by the sketch control means; animation means for creating and storing a sequence of selected stored sketches coupled to the storage means to enable the display of said sequence of sketches on the display area, the animation means including manually actuatable addition means for adding a sketch selected by the manually actuatable sketch selection means to the stored sequence of sketches, and a manually actuatable means for initiating the sequential display of the stored sequence of sketches on the display means; power means for receiving a source of electrical energy for powering the toy; and a compact, lightweight housing for supporting the display device, movement means, storage means, sketch selection means, sketch copying means, animation means and power means and adapted to make the toy portable and hand-held; whereby a dedicated sketching and animation device which functions as a completely portable toy is provided.

Claim 2

Dependent Claim 305 words

A dedicated portable electronic sketching and animation toy, comprising: a display device for displaying sketches and animation on a display area; manually actuatable movement means for moving a cursor on the display area; storage means selectively coupleable to the display device for storing a plurality of sketches; sketch control means coupled to the manually actuatable movement means and storage means for selectively storing and erasing the placements of the cursor in the storage means to create and modify a sketch visible in the display area and stored in the storage means; manually actuatable sketch selection means coupled to the storage means for selecting a stored sketch for display on the display area and modification by the sketch control means and for selecting a stored sketch for addition to a stored sequence of sketches; manually actuatable sketch copying means for copying a selected stored sketch without erasing said selected sketch from the storage means, for display in the display area and modification by the sketch control means; animation means for creating and storing a sequence of selected stored sketches coupled to the storage means to enable the display of said sequence of sketches on the display area, the animation means including manually actuatable addition means for adding a sketch selected by the manually actuatable sketch selection means to the stored sequence of sketches, and a manually actuatable means for initiating the sequential display of the stored sequence of sketches on the display means; power means for receiving a source of electrical energy for powering the toy; and a compact, lightweight housing for supporting the display device, movement means, storage means, sketch selection means, sketch copying means, animation means and power means and adapted to make the toy portable and hand-held; whereby a dedicated sketching and animation device which functions as a completely portable toy is provided.

Claim 3

Dependent Claim 45 words

The electronic sketching device of claim 1 wherein the animation means for creating and storing a sequence of the sketches includes manually actuatable members for selecting a sketch for addition to the sequence and for adding the selected sketch to the stored sequence of sketches.

Claim 4

Dependent Claim 24 words

The electronic sketching device of claim 1 wherein the stored sequence of sketches contains more than the total number of the individual stored sketches.

Claim 5

Dependent Claim 26 words

The toy of claim 1 wherein the animation means is adapted so that each stored sketch may be selected more than once in the animation sequence.

Claim 6

Dependent Claim 15 words

The toy of claim 1 wherein the display means is a liquid crystal display screen.

Claim 7

Dependent Claim 30 words

The toy of claim 1, wherein the sketch control means stores placements of the cursor on the display area as pixels and erases cursor placements by changing the stored pixels.

Claim 8

Dependent Claim 17 words

The toy of claim 6, wherein the display means is a multi-pixel dot matrix liquid crystal display.

Claim 9

Dependent Claim 23 words

The toy of claim 5 wherein the liquid crystal display screen contains a low viscosity medium speed liquid crystal and is reflectively polarized.

Claim 10

Dependent Claim 89 words

The toy of claim 1 wherein the means for moving the cursor includes two manually actuatable movement means for moving a cursor on the screen, one of the manually actuatable movement means controlling movement of the cursor along a first axis, the other manually actuatable movement means controlling movement of the cursor along a second axis, at an angle to the first axis, whereby the cursor can be moved to any point on the display area by selective manual actuation of the first and second manually actuatable movement means.

Claim 11

Dependent Claim 138 words

The toy of claim 9 wherein each of the manually actuatable movement means includes a knob-interrupter member having an opaque cup with slots regularly spaced about the periphery of the cup, at least one light source on one of the inside and outside of the cup and at least one detector means on the other side of the cup from the light source for detecting the light generated by the at least one light source passing through the slots in the cups as the manually actuatable knob-interrupter member is rotated, the light source and said at least one detector means together defining at least three detection elements, and control means, coupled to the at least one detector means for converting the light received by the detector means associated with the knob-interrupter members into movement instructions for the cursor.

Claim 12

Dependent Claim 59 words

The toy of claim 1 wherein the sketch control means includes at least one manually actuatable member for causing one of the storage of the placements of the cursor and non-storage of the placements of the cursor, and processing means coupled to at least one manually actuatable member for implementing the selected storage or non-storage of the cursor placements.

Claim 13

Dependent Claim 54 words

The toy of claim 1 wherein the sketch control means includes two manually actuatable members, one of which causes the placements of the cursor on the display area to be stored in the storage means and the other of which causes the placements of the cursor not to be stored in the storage means.

Claim 14

Dependent Claim 17 words

The toy of claim 1, wherein the power means is adapted to receive at least one battery.

Claim 15

Dependent Claim 38 words

The toy of claim 1, further comprising audio feedback means for producing a sound representative of at least one movement of the cursor, storage of a sketch and the creation and storage of a sequence of the sketches.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-08-16	1992-02-15	1992-08-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-08-16	1996-02-15	1996-08-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-08-16	2000-02-15	2000-08-16	$7700.00	Window Closed / Lapsed

Electronic sketching device

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