Abstract: A cell extender for use in digital cellular telephone systems comprises a control module, and scanning module, and several traffic modules. The control module bidirectionally repeats the donor cell site control channels. Voice modules therein bidirectionally repeat selected donor traffic channels for mobiles. The voice module amplifies and translates the Reverse Digital Traffic Channel RDTC (transmitted by the mobile). The voice module reframes the Forward Digital Traffic Channel, and advances its timing such that RDTC signals transmitted by the mobile and repeated by the cell extender arrive at the donor with the correct timing alignment. The timing advance compensates for RF path propagation delay between the donor and the cell extender, and for any additional delay through the cell extender. If the voice module determines that the mobile is leaving the cell extender coverage area, it sends a hand-off message returning the mobile to the assigned donor traffic channel.

Abstract: A facsimile machine containing an improved paper separator system is described where, instead of a symmetrical, cylindrical paper-feed roller, an asymmetrical feed roller (or stripper roller) is used to separate a bottommost sheet from a stack of sheets. Eccentric portions of the feed roller are located at both ends of the roller, and the middle portion of the roller is cylindrical. Paper-feed springs oppose the eccentric portions of the feed roller, while a centrally located separator pad opposes the cylindrical middle portion of the feed roller. The extended radius at the apogee of the eccentric portions allows the eccentric portions to effectively reach out and grab the bottommost sheet even if the stack of sheets were only initially lightly contacting the roller. The eccentric portions of the feed roller also provide surges in the frictional force urging the bottommost sheets toward the separator pad.

Abstract: A Minitel videotex terminal is connected to the processor of a facsimile machine and internal switches are controlled in response to activation of a man-machine interface key to permit the higher speed modem of the facsimile machine to be selectively utilized in lieu of the slower speed modem of the Minitel terminal. The arrangement permits other components of the Minitel terminal and the facsimile machine to operate in selective combinations.

Abstract: A method and apparatus for quantizing pixels in an image formed by a plurality of pixels, each pixel constituting an image signal representing optical density of the image at a location therein, and having an original optical density value selected from one of a set of `c` original optical density values that has a number of members larger than a desired output set of `d` optical density values, through a process of error diffusion. For an input image so comprised, initially, an image signal is initially modified in accordance with previously determined error. Thereafter, during the quantization step of the process, the threshold signal for quantization determination is dynamically adjusted in accordance with previous output quantization determinations to selectively control likelihood of whether the next pixel will exceed the threshold.

Abstract: A scanning apparatus providing separate fixed focal planes for transmissive and reflective original documents to be scanned, wherein a scan carriage containing illumination, sensor, and optical elements is moved together to scan an original document and to obtain a digitized representation thereof. The movable scan carriage has an illumination source disposed between the reflective and transmissive object focal planes, with the object focal plane to be used selected by changing the position of one or more optical elements within the scan carriage. The resolution of the digitized representation of the scanned original document can be determined by rotation of at least one lens about an axis substantially perpendicular to its optic axis.

Abstract: Computerized system for dynamically creating a document from a database responsive to telephonic input from a remote user, and transmitting the document to the user's facsimile machine. When a user desires to access a remote database according to the present invention, that user calls the apparatus of the present invention and in response to a voice menu system creates queries to the database. After receipt of the user's request, the system processes the request into a dynamically created document which meets the user's specifications and automatically transmits the document to the user's facsimile machine. A real estate sales support system constructed according to the principles of the present invention presents the user with a document comprising a listing of properties best meeting the user's needs and series of maps of varying scale enabling the user to locate the properties for inspection.

Abstract: Independent groups of wireless telephone subscribers (tenants) are supported by common infrastructure communication equipment including network controller (WNC) and a database that stores group membership A plurality of radio frequency base stations are disposed to provide wireless communications channels for the wireless telephones. A switched telecommunication office supports conventional wired communication channels. The WNC supports a plurality of base stations and can couple a wireless and wired communication channel together to provide a voice channel for a wireless telephone subscriber. The WNC only provides a voice channel to a requesting wireless telephone subscriber if the base station carrying the request has been assigned to handle the group that includes the the requesting subscriber as determined by the database.

Abstract: Apparatus for interfacing a conventional facsimile machine with a PC enabling the use of the facsimile machine as a scanner or printer. A first switch assembly selectively couples the PC modem and facsimile machine either to independent telephone lines in a normal mode or to one another in a scan/print mode. A manually operated switch assembly is depressed for a brief interval sufficient to activate a ringing circuit which converts DC power from a small battery source to a 20 Hz sine wave of 90 volt amplitude and applies the sine wave signal to the PC to cause the PC or facsimile to enter into a scan or print mode, respectively. The manually operable switch is then released to apply a constant current to the facsimile machine to simulate an off-hook condition.

Abstract: A method of diagnosing an image processing system. In the method, predetermined diagnosis data of a compressed form is stored into a first page of a page buffer capable of storing image data of at least two pages. The diagnosis data of the compressed form read out of a memory area of the first page is expanded into restored diagnosis image data. The restored diagnosis image data is stored into a second page of the page buffer. The restored diagnosis image data is subjected to rotation processing by a rotation processor and the processed diagnosis image data is stored into the memory area of the first page. The processed diagnosis image data read out of the first page memory area is compressed by a compressor and the compressed image data is stored into the second page memory area. The result of the rotation processing is diagnosed by comparing the diagnosis data of the compressed form read out of the second page memory area with test data of the compressed form that is previously prepared.

Abstract: A store and hold communications system for storing data files and associated notification messages created at a plurality of first locations. The data files and associated notification messages are automatically and selectively transmitted and stored in remote data stores at a remote location. The remote data stores are associated with a plurality of second locations. Facsimile copies of the notification messages are automatically sent to selected second locations corresponding to the intended recipients of the data files stored in the remote data stores. In response to receiving the facsimile copy of the notification message, the selected second locations initiate a communications link with the remote location to retrieve the stored data files from the remote data store at the remote location associated with the selected second locations.

Abstract: A facsimile apparatus designed for reduced power consumption, a smaller number of component parts, smaller size, lighter weight and lower cost includes an original reading section having a contact-type line image sensor and a first biasing roller driven so as to be rotated in a state in which the contact-type line image sensor is biased, a recording section arranged in the vicinity of the original reading section and having a line thermal head and a second biasing roller driven so as to be rotated in a state in which the line thermal head is biased, a driving mechanism in which a reversible motor is used as a drive source, a rocking mechanism for driving solely the first biasing roller when the motor is rotatively driven in one direction and driving both the first and second biasing rollers when the motor is rotatively driven in the other direction, and a power transmission mechanism in which the rocking mechanism is arranged in a power transmission system for driving the first and second biasing rollers.

Abstract: A wireless telephone set comprise control circuit for controlling the transmission and the reception of signals, and a power switch for controlling the supply of a power to the control circuit. The power switch is turned ON to supply the power to the control circuit in response to each of frame signals, and is turned OFF when the wireless telephone set is in a waiting state for waiting an arriving call directed to the wireless telephone set, thereby the power consumption in the control circuit is reduced.

Abstract: A communication system comprised of a transceiver (101) for transmitting and receiving data signals and a modulation/demodulation apparatus (102) to modulate the data signals from an accessory (109) for transmission and demodulate data signals after reception by the transceiver (101). A processing device (103) controls power to the various components of the communication system.

Abstract: Adaptive preprocessing is performed on the three primary color signals generated during the scanning of a color image in order to enhance the perceived saturation of the dominant primary color. This preprocessing is performed by removing a small increment from the least intense primary color and adding the same increment to the most intense primary color. In this manner the overall brightness of the pixel is preserved, but the perceived saturation is increased. The increment that is effectively transferred from the least intense primary color value to the most intense primary color value is based on the relations of the three primary color values to each other in order to avoid visible color artifacts.

Abstract: An method and system for increasing the compatibility of a fax machine enables one to make a fax machine compatible with at least one other fax machine feature set. The invention includes selecting a compatibility module to handle a fax transmission based on a frame of information provided by another fax machine. The compatibility module interprets this information and maps it to a capabilities object. A messaging protocol module reads this capabilities object to determine the available capabilities.

Abstract: An image scanner-reader has an image read unit, and an employing control unit. The image read unit is used to read an original document and provide image data of the original document. The employing control unit is used to control the relative moving speed between the original document and the image read unit, and when an original document reading operation is suspended, the employing control unit controls the restart of the reading operation after decreasing the relative moving speed to a slow reading speed of the original document. Therefore, when the image data buffer becomes full enough to cause a suspension state, and the read operation is restarted after changing control conditions, so that the quantity of data transferred to the image data buffer is reduced. Namely, according to the present invention, the number of occurrences of the suspension state can be greatly reduced, and thereby the overal reading speed can be improved without increasing the data receiving speed of a host device.

Abstract: An ISDN switching apparatus for performing an ISDN local connection includes a digital switch, a first terminal and a second terminal connected by a juncture external to the digital switch. A network control device performs interface control for the public network. The network control device is located between the digital switch and the public network. A terminal device controls a fixed terminal device such as an ISDN terminal. A first connection device performs a connection control of the digital switch for the terminal control device.

Abstract: The present invention is made to reduce the effect of variation of pulses for driving a printer when recording image data and to improve the gray level representation of picture images to be printed. Data incoming through an image reading device are quantized and processed two pixels at a time by a gray level image processing circuit. The two-pixels' data are first discriminated by an edge discriminator to determine whether they represent an edge portion within the image or not. An object image, on which an operation for inter-pixel spacing shall be conducted, is selected according to the discrimination result. The arithmetic and logic portion performs the above-mentioned operation by two pixels at a time if the data correspond to a non-edge portion and performs correction for enhancement if the data correspond to an edge. This may eliminate the effect of dot displacement due to variation of drive pulses of a printer and improve the quality, in particular, of a gray level image portion.

Abstract: Outline vectors representing an arrangement of pixels of a binary image obtained by a binary image obtaining unit are extracted by an outline extractor. From the extracted outline vector, isolated points are extracted. These isolated points are stored in an isolated point data generator 7 as information indicative of the position of isolated point. The outline vectors other than the isolated points are stored in the vector generator 3 as vector data. When a binary image is reproduced, the stored position information of the isolated points is developed to produce vector data by the isolated point data developer 8. Accordingly, since the isolated points are stored not in the form of outline vectors, but position information, the storage capacity for storing the outline vectors can be small. This construction is effective in halftone image in particular.

Abstract: A system for transporting mixed documents having a loading conveyor for transporting documents to a document prefeeder. The document prefeeder transports documents from the loading conveyor on an angled conveyor to a stack feeder that accumulates a shallow stack of documents. A single document feed removes single documents from a shallow stack on the stack feeder and transports the single documents to a main conveyor. A camera on the main conveyor reads each document such as mail, and prints information concerning the document, such as a bar code, on each document. The documents are moved by the main conveyor to an output conveyor for sorting and accumulation.