Local handwriting recognition in a wireless interface tablet device
First Claim
1. A computer system which enables one or more wireless interface devices to communicate with a plurality of remote host computers, the system comprising:
- a plurality of remote host computers adapted to communicate over a radio link with one or more wireless interface devices, said plurality of remote host computers, each having a CPU and a storage device for running and storing programs;
one or more wireless interface devices adapted to communicate over said radio link with said plurality of remote host computers, each wireless interface device including a digitizer panel responsive to a passive stylus for receiving handwriting input, a selectively enabled handwriting recognition system for translating said handwriting input into character data and means for transmitting said character data over said radio link to said remote host computer, said wireless interface device including means for monitoring pen down events of said passive stylus in a mouse mode and emulating the movement of a mouse and the clicking of a mouse button in response to pen down events in which the movement of a mouse and clicking of a mouse button are emulated and a pen mode of operation for translating pen down events into pen data, said wireless interface device including means for switching between a pen mode and a mouse mode, said wireless interface device having an ink field;
means for enabling a user to manually select a remote host computer from said plurality of remote host computers, and establish a connection with a selected remote host computer;
means for enabling said wireless interface device to take control of and access said selected remote host computer and said programs on said selected remote host computer;
means for detecting a pen down event in said ink field; and
means for activating said handwriting recognition system based on said pen down event in said ink field.
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Accused Products
Abstract
A pen-based portable computer system, and more particularly, to a computer system which includes a host computer or a server that is adapted to interface with one or more wireless interface devices over a radio link. The wireless interface devices are pen-based devices which include a digitizer panel and are adapted to operate on a mouse mode, as well as a pen mode. In a mouse mode, pen down events are translated into mouse data and transmitted over the radio link to the remote server or host computer. In a pen mode, pen down events in an ink field are formulated as pen data. In accordance with an important aspect of the present invention, the wireless interface device includes a local handwriting recognition system for translating handwriting into characters which are then transmitted to the remote server or host computer over a radio link for processing.
63 Citations
27 Claims
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1. A computer system which enables one or more wireless interface devices to communicate with a plurality of remote host computers, the system comprising:
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a plurality of remote host computers adapted to communicate over a radio link with one or more wireless interface devices, said plurality of remote host computers, each having a CPU and a storage device for running and storing programs;
one or more wireless interface devices adapted to communicate over said radio link with said plurality of remote host computers, each wireless interface device including a digitizer panel responsive to a passive stylus for receiving handwriting input, a selectively enabled handwriting recognition system for translating said handwriting input into character data and means for transmitting said character data over said radio link to said remote host computer, said wireless interface device including means for monitoring pen down events of said passive stylus in a mouse mode and emulating the movement of a mouse and the clicking of a mouse button in response to pen down events in which the movement of a mouse and clicking of a mouse button are emulated and a pen mode of operation for translating pen down events into pen data, said wireless interface device including means for switching between a pen mode and a mouse mode, said wireless interface device having an ink field;
means for enabling a user to manually select a remote host computer from said plurality of remote host computers, and establish a connection with a selected remote host computer;
means for enabling said wireless interface device to take control of and access said selected remote host computer and said programs on said selected remote host computer;
means for detecting a pen down event in said ink field; and
means for activating said handwriting recognition system based on said pen down event in said ink field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless interface device comprising:
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means for enabling radio communication with a plurality of remote host computers, each of said remote host computers having a CPU and a storage device for running and storing programs;
means for enabling a user to manually select a remote host computer from said plurality of remote host computers, and establish a connection with a selected remote host computer;
means for enabling said wireless interface device to take control of and access said selected remote host computer and said programs on said selected remote host computer;
a digitizer panel for receiving handwriting input data from a passive stylus and defining an ink field;
means for detecting a pen event within said ink field, said detecting means responsive to a passive stylus, said detecting means having a mouse mode of operation for emulating the movement of a mouse and the clicking of a mouse button in response to pen down events and pen mode of operation for translating pen down events as pen data;
a handwriting recognizer, in communication with said digitizer panel, for generating character data in response to said handwriting input; and
means for activating said handwriting recognizer as a function of said pen event. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27)
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26. A wireless interface device for communicating with a plurality of remote host computers, each of said remote host computers having a CPU and a storage device for running and storing programs, the wireless interface device comprising:
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means for enabling a user to manually select a remote host computer from said plurality of remote host computers, and establish a connection with a selected remote host computer;
means for enabling said wireless interface device to take control of and access said selected remote host computer and said programs on said selected remote host computer;
a digitizer panel for receiving handwriting input;
a handwriting recognition engine, in communication with the digitizer panel, for generating character data in response to the handwriting input;
a radio frequency interface for transmitting the character data to a remote host by way of a radio link;
means for displaying an ink field, said displaying means responsive to a passive stylus, said detecting means having a mouse mode of operation for emulating the movement of a mouse and the clicking of a mouse button in response to pen down events and a pen mode of operation for translating pen down events as pen data;
means for detecting a pen event in said ink field; and
means for switching the wireless interface device between a first mode of operation and a second mode of operation based on said pen event, wherein either of said first mode or said second mode is a handwriting recognition mode.
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Specification