摘要:
An information retrieval device displays portions of a dynamically modifiable document requested by a user. The information retrieval device has a controller connected to a display screen, input selector switches, such as buttons, and memory, such as non-volatile flash memory. One or more documents, such as a newspaper or magazine, is stored in the memory. A receiver, such as a pager, modem, or FM radio receiver, is connected to and dynamically updates the memory. When the device is turned on, a first portion of a document is displayed on a display screen. When the user wants to see a different portion of the document, or a different document altogether, she presses one of the buttons. Upon detection that a button was enabled, an action is performed that changes the display on the display screen. The action performed can vary in complexity: it may simply cause the next page of the document to be displayed, or may execute a nested hypertext link to cause related information contained in the same or a different document to update only a portion of the display screen. The document is stored in the memory in a manner that allows the display screen to be refreshed directly from the memory. When an updated portion of a document is received by the receiver, that portion of memory is updated.
摘要:
Optical character recognition is achieved by a system which comprises a scanner for scanning a document, an edge extractor for identifying edges in the image produced by the scanner to produce an outline of each object identified in the image, a segmentation facility for grouping the object outlines into blocks, means for identifying features of the outlines, and a final classification stage for providing data in an appropriate format representative of the characters in the image. Also disclosed are a novel edge extractor, a novel page segmentation facility and a novel feature extraction facility.
摘要:
A two way communications path is established between a pager device and a paging service provider. The pager device generates a control command for the paging service provider, converts the control command into signals recognizable by a telephone network, and transmits the signals to the paging service provider over the telephone network. The paging service provider receives the signals from the pager device over the telephone network, generates one or more messages for the pager device in response to these signals, and sends the message(s) to the pager device over a wireless paging network. The pager device receives the message(s) over the wireless paging network.
摘要:
An information retrieval device displays portions of a document requested by a user. The information retrieval device has a controller connected to a display screen, input selector switches, such as buttons, and non-volatile memory, such as a removable ROM. One or more documents, such as a book or magazine, is stored in the non-volatile memory. When the device is turned on, a first portion of a document is displayed on a display screen. When the user wants to see a different portion of the document, or a different document altogether, she presses one of the buttons. Upon detection that a button was enabled, an action is performed that changes the display on the display screen. The action performs can vary in complexity: it may simply cause the next page of the document to be displayed, or may execute a nested hypertext link to cause related information contained in the same or a different document to update only a portion of the display screen. The document is stored on the non-volatile memory in a manner that allows the display screen to be refreshed directly from the non-volatile memory.