Hitachi, Ltd.

Renesas Technology Corp.

Masaki Miura

Soshiro Kuzunuki

Toshimi Yokota

Yasushi Fukunaga

Hiroshi Shojima

Keiko Gunji

Toshifumi Arai

Koyo Katsura

Toshio Tanaka

Masaaki Kitajima

Toshimi Mifune

Junko Mori

Ken Ichiryu

Toshihiko Matsuda

Masayuki Shigeta

Toshio Takekoshi

Hiroshi Shoujima

Soushiro Kuzunuki

Kazuo Aisaka

Keiko Abe

Tadashi Shibata

Tooru Numata

Hideki Sakao

Toshifumi Yokota

Apparatus for recognizing input character strings by inference

A character recognizing apparatus capable of recognizing discriminatively characters written continuously, irregularly and/or containing modification is provided which apparatus includes an input unit for allowing a handwritten character to be inputted to thereby output coordinate-points string, a dictionary for storing therein a plurality of character codes and character patterns corresponding to the character codes, respectively, an element decomposition module for decomposing the coordinates string outputted from the input unit into a plurality of elements which constitute the character, and a matching module for determining corresponding distance values for the elements of the character pattern stored in the dictionary and the elements of character pattern of the inputted character for each of the character patterns stored in the dictionary, to thereby correct the distance values determined on the basis of the elements bearing no correspondence.

Character recognizer

A display device has a touch pad and a display lamintated together to form a screen, That screen is connected to a controller which processes signals generated by physical contact with the touch pad and activates the display to display e.g. characters input by a stylus to the touch pad. The display device is connected to an external device (e.g. a computer) and video signals from the external device are received via a video input and may be displayed on the display. Also the controller can transmit to the external device via an output. Thus, the display can display simultaneously information from the external device and information input to the touch pad. If the controller is arranged to carry out character recognition, the display device may then act as a hand-writing input device, with the handwritten information being incorporated with information in the external device and displayed.

Display device and display system incorporating such a device

The present invention relates to a multi-user pattern data processing system configured for various kinds of patterns, such as characters, to learn efficiently and effectively. The present invention comprises an input arrangement 1 having patterns entered therein from a plurality of users, a dictionary 2 having patterns and attributes of the patterns belonging thereto defined therein, a recognizing arrangement 4 that receives the entered pattern and a group attribute and retrieves from among the patterns entered in the dictionary and having a corresponding group attribute to feed out the category, and a dictionary editing arrangement 5 for extracting a pattern used in common by a group before editing the pattern, such as entering it in the common dictionary, with the group having the user made to belong thereto. The invention allows the dictionary used to the pattern recognition to learn very efficiently and effectively.

Collaborative learning system and pattern recognition method

The present invention relates to an information processing system using a coordinate detection device and displays, and more specifically to an input-display integrated information processing system which allows the displays to be carried like paper and to be freely laid out and stacked together on a desk (coordinate input device). The system includes a layout determining unit for determining a layout of the display on said coordinate detection device, wherein the layout determining unit further comprises a display position coordinate detector that detects where in the coordinate space of the coordinate detection device the display for displaying an information is located, and a coordinate converter that converts the information into display coordinates. The layout determination is done by using markers attached to three of the four corners of the display.

Information processing system

A document or sentence processing apparatus having an input unit for inputting characters, a display unit for displaying input characters and a processing unit for converting and editing the input characters, in which the processing unit has a candidate word extraction unit which extracts candidates for the words with their characters omitted and/or omitted words themselves by referring to the vocabulary dictionary storing words and their usage frequency, to the dictionary of transition between words defining the information on the transition between words and the probability of the transition between words, and by searching the characters before and after the elliptic character included in the input sentence into the vocabulary dictionary, and a determination unit which selects a single word among the extracted candidate words by referring to the dictionary of transition between words.

Sentence processing apparatus and method thereof,utilizing dictionaries to interpolate elliptic characters or symbols

A character recognition apparatus for inferring the entire character string solely from a user-input handwritten keyword and displaying the inferred result as a candidate character string. The apparatus of the invention comprises: a word dictionary storing word identification information and hierarchy information for layering a plurality of words into a hierarchy and for recognizing each of the words within the hierarchy; a character transition probability table a4 storing probabilities of transitions from any one character to another, and those pieces of the word identification information which correspond to combinations of characters resulting from the transitions; and an optimization unit for using the character transition probability table in optimizing candidate character strings obtained by a recognition unit. The word dictionary is searched for a word defined by the word identification information which corresponds to the optimized candidate character string, whereby the searched word is retrieved which applies to the hierarchy information and which has yet to be input.

The present invention relates to an information processing system using a coordinate detection device and displays, and more specifically to an input-display integrated information processing system which allows the displays to be carried like paper and to be freely laid out and stacked together on a desk (coordinate input device). The system includes a layout determining unit for determining a layout of the display on said coordinate detection device , wherein the layout determing unit further comprises a display position coordinate detector that detects where in the coordinate space of the coordinate detection device the display for displaying an information is located , and a coordinate converter that converts the information into display coordinates. The layout detremination is done by using markers attached to three of the four corners of the display.

A display device has a touch pad and a display lamintated together to form a screen, That screen is connected to a controller which processes signals generated by physical contact with the touch pad and activates the display to display e.g. characters input by a stylus to the touch pad. The display device is connected to an external device (e.g. a computer) and video signals from the external device are received via a video input and may be displayed on the display. Also the controller can transmit to the external device via an output. Thus, the display can simultaneously display information from the external device and information input to the touch pad. If the controller is arranged to carry out character recognition, the display device may then act as a handwriting input device, with the handwritten information being incorporated with information in the external device and displayed.

In an information processing apparatus having a handwriting input unit made of an integral structure of a handwriting coordinate input device and a plane display, the screen of the handwriting input unit is constituted by one or more areas, and there are provided a form defining unit for defining in advance a process operation for each area and a stroke interpretation executing unit for executing the process operation defined by the form defining unit when a handwritten stroke is inputted to the area. It becomes therefore possible to input data with a realistic sense of writing data on a paper with a pen without intercepting human thinking processes, while considerably improving man-machine interface.

Handwritten input information processing apparatus and handwritten input

A pattern recognition system having a plurality of dictionaries, wherein handwritten input information is compared with patterns contained in the plurality of dictionaries so as to deliver a similar one of the patterns as a recognized result; The system comprises a controller which selects one pattern as a final recognized result from among recognized results based on the plurality of dictionaries, so as to deliver the selected pattern as its output. The controller evaluates summations of values previously set for respective candidate levels in the recognized results, for individual candidate patterns which exist in the recognized results based on the plurality of dictionaries, and it selects the pattern of the final recognized result on the basis of the summations. Thus, the recognized result most suited to a user is automatically derived from among the recognized results based on the plurality of dictionaries.

Pattern recognition system

A hand-written character recognition apparatus with a personal dictionary preparation function has a character recognition unit for comparing an input hand-written character data with a registered standard dictionary to recognize a most similar character pattern, and a display unit for selecting and displaying a display font corresponding to the recognized character pattern, so that a personal peculiar character or simplified character inputted can be recognized. When a personal dictionary is to be registered, the character to be registered is inputted by hand-writing, the character recognition unit compares the input hand-written character data with the standard dictionary to recognize a similar character pattern, and the recognized character code of the standard dictionary is selected as the character code to be registered. When the personal dictionary is to be prepared, a personal pattern input frame which permits simultaneous input of a plurality of personal hand-written character patterns is provided, and the input personal patterns are allotted to one character code to be registered. When the personal character pattern is to be prepared and registered, similarity between the input personal pattern and the registered dictionary pattern is checked, a stability index indicating a degree of stability of recognition of the personal pattern is calculated based on the similarity, and the stability index is displayed.

Hand-written character recognition apparatus with a personal dictionary

An information processing system which comprises an integral input and display unit comprising a display which enables an object to be selectively displayed at one of a plurality of positions in a display area and a tablet having an input face overlaid on a display face of the display, the input and display face being disposed substantially horizontally, and a display whose display face is disposed substantially uprightly, wherein when an object is presented to a user in the display area of the display, a display position of the object is determined in response to at least one of a state of the user, a state of the input and display face, and a display state of the display, thereby enabling the object to be displayed at an easy-to-use position relative to the user's position.

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Hitachi, Japan

Masaki Miura