HANDHELD ELECTRONIC DEVICE WITH DATA ENTRY AND/OR NAVIGATION CONTROLS ON THE REVERSE SIDE OF THE DISPLAY
First Claim
1. An electronic device having a first planar surface consisting of a display screen on one side and a second planar surface, substantially parallel to the first planar surface, on the opposite side incorporating a command and data entry structure which comprises a plurality of keys, the device incorporating electronic circuitry which generates an image on the display screen which mirrors the arrangement of the keys on the second planar surface;
- the device adapted to be hand supported so that the first planar surface is visible to the user and the user'"'"'s fingers are arrayed on the second planar surface;
the circuitry being adapted to modify the images of particular keys which are touched by the user'"'"'s fingers; and
circuitry for implementing the function of a key when a displayed key is subsequently depressed.
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Accused Products
Abstract
A handheld electronic device has a display screen on a front planar surface and a command entry structure comprising a keyboard on a rear planar surface parallel to the front planar surface. Mirror images of the rear keys are displayed on the screen and are highlighted when a key is touched. The user further depresses the touched key to confirm the command. The keyboard has a unique configuration which allows touch typing.
128 Citations
14 Claims
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1. An electronic device having a first planar surface consisting of a display screen on one side and a second planar surface, substantially parallel to the first planar surface, on the opposite side incorporating a command and data entry structure which comprises a plurality of keys, the device incorporating electronic circuitry which generates an image on the display screen which mirrors the arrangement of the keys on the second planar surface;
- the device adapted to be hand supported so that the first planar surface is visible to the user and the user'"'"'s fingers are arrayed on the second planar surface;
the circuitry being adapted to modify the images of particular keys which are touched by the user'"'"'s fingers; and
circuitry for implementing the function of a key when a displayed key is subsequently depressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 14)
- the device adapted to be hand supported so that the first planar surface is visible to the user and the user'"'"'s fingers are arrayed on the second planar surface;
- 9. A handheld electronic device having a first planar surface supporting a display screen and a second, opposed, substantially parallel planar surface carrying a keyboard, the keyboard being arranged in a BGTYHN configuration derived by splitting a QWERTY keyboard vertically into two sections, rotating each section through ninety degrees in opposed directions, and flipping the resulting configuration through one hundred eighty degrees about a vertical axis, whereby when the device is held by a user with two hands on opposed sides of the device and the user'"'"'s fingers on the rear of the device, the fingers will be arrayed on the keyboard in a manner similar to the array of a conventional typist'"'"'s fingers on a QWERTY keyboard.
Specification