Abstract: An automatic telephone answering system employs a switch activated by any of several techniques to select a language for communication with a caller. A single matrix determines the content of a message to be generated in response to input from the caller. A single matrix can be used because it is arranged in accordance with the content of the various messages and not on the specific language of the messages. All of the messages for each respective language are stored in a separate directory such that a given identifier obtained from the matrix will recall that message in the language determined by identification of the particular directory. A telecommunications device for the deaf (TDD) is treated in the same manner as a language and selection of messages employs the same matrix used for traditional languages. Received TDD signals are converted to ASCII for storage, and messages to be identified by the matrix are stored in ASCII and converted to TDD before transmission.

Abstract: An automatic telephone answering system employs a switch activated by any of several techniques to select a language for communication with a caller. A single matrix determines the content of a message to be generated in response to input from the caller. A single matrix can be used because it is arranged in accordance with the content of the various messages and not on the specific language of the messages. All of the messages for each respective language are stored in a separate directory such that a given identifier obtained from the matrix will recall that message in the language determined by identification of the particular directory. A telecommunications device for the deaf (TDD) is treated in the same manner as a language and selection of messages employs the same matrix used for traditional languages. Received TDD signals are converted to ASCII for storage, and messages to be identified by the matrix are stored in ASCII and converted to TDD before transmission.

Abstract: An extensive morse code processing system includes a microprocessor unit, a transmitter processing unit, a receiver processing unit, a display unit, a keyboard unit, and a radio unit. Whenever a data key on the keyboard is pressed, the ASCII code of the pressed key is received by the microprocessor unit and is converted into a binary line code. The line code is processed by the transmitter unit and is then transmitted as morse code signals by the radio unit. Morse code signals received by the radio unit are converted by the receiver unit into the corresponding binary line code. The line code from the receiver unit serves as input to the microprocessor unit which converts the line code into standard ASCII. The microprocessor then actuates the display unit to display the received characters. Exchange of data between the microprocessor unit and a a computer is also possible through an RS-232 interface adapter interconnecting the computer and the microprocessor unit.

Abstract: A telecommunications device automatically detects the code used by a second telecommunications device to which the devices are linked to transmit and receive therebetween. After the telecommunications device has been set to transmit and receive in code which has been detected, the telecommunications device continues to interrogate the second telecommunications device for a more optimal code (usually a code with higher transmission and receiving speeds) that is common to both devices.

Abstract: A converter device for converting signals between an RS-232 device and an RS-422 device. The converter device can either be self-powered, using signals at the I/O port of the RS-232 device to derive its operating voltages, or can be powered by an external voltage source when the I/O signals are not of sufficient magnitude to derive the operating voltages or there are a large number of devices connected in parallel by the converter device.

Abstract: A first data processing system sends a message to a second data processing system via a modem. A processor of the first data processing system executes the instructions of an encoding algorithm stored in a memory of the first data processing system thereby encoding the characters of the message as the message is sent from the first system to the second system. The processor, in conjunction with the encoding algorithm, encodes the characters of the message by locating unacceptable characters among the acceptable characters in the message, the unacceptable characters possessing more than one meaning and triggering the execution of a function other than the intended function. The acceptable characters do not possess any alternative meanings. A bias code is selected for the acceptable characters and a further bias code is selected for the unacceptable characters. The unacceptable characters are converted into modified acceptable characters.

Abstract: It is an object of the present invention to provide a teleprinting machine capable of transmitting and writing capital and small letters, where the number of additionally transmitted shift code combinations is minimized in order to reduce the transmission time in this fashion.

Abstract: A data transmission system has a data converter for converting character code data into dot image data, and/or vice versa. The data converter has a memory and a pattern generator and/or a character recognition apparatus to perform such conversion. The system allows data transmission in either form with a smaller number of lines to connect respective stations, and also allows direct communication between the stations.

Abstract: In a message communication system and process, a character string with a plurality of characters is encoded into a compact code, which is transmitted to a reception side. At the reception side, the compact code is decoded to an original character string. Thus, the amount of information to be transmitted is fairly reduced as compared with the transmission in which each character is encoded. Preferably, a combination of a word and a `space` code following the word is encoded to a single compact code. The compact code may also encode a combination of a plurality of words. Some particular control codes are defined for converting a small character to a capital character, or vice versa, and designating special code like period ".", quotation mark "?", etc.

Abstract: A microprocessor operated telecommunications interface for connection to a telecommunications line to provide transmission of data between a dedicated terminal of an automatic teletypewriter switching service of the type operating in one code and a data base of the type operating in another code is disclosed. The interface includes a microprocessing unit, a memory for operating the microprocessing unit, a random access memory, a telecommunications modem, means for formating and controlling serial a synchronous data communication and at least two user-actuatable switches for selecting a function of the interface. One function selecting switch accesses the microprocessor unit to the user terminal to provide for entry and editing of message information while a second function selecting means actuates the telecommunications to dial the data base using dialing information stored in the random access memory.

Abstract: An input-output converter permits the integration of terminals and transmit and receive equipments that operate at given logic voltage levels and character formats into communications system that operate at different logic voltage levels and character formats. The input-output converter includes a universal asynchronous receiver transmitter that converts m bit serial data into n bit parallel data in a receive mode and n bit parallel data to m bit serial data in a transmit mode while stripping and adding asynchronous start-stop bits. The input-output converter also includes logic voltage level converters that convert digital data to appropriate logic voltage levels for each function.

Abstract: A data exchange system is connected to at least one signal converter in which digital signals emitted from teletex subscriber stations are converted so that they may be processed by teletex subscriber stations, and vice-versa. In order that the load on the signal converters may be as low as possible in the event that digital signals cannot be deposited in the desired subscriber station, the data exchange system is additionally connected to at least two special teletex transmitting/receiving devices. These teletex transmitting/receiving devices can be operated by a special call signal only in the event that a teletex subscriber station or a signal converter is currently unable to deposit digital signals in the desired subscriber station. In response to such operation of the teletex transmitting/receiving devices, the latter is supplied with digital signals which cannot currently be deposited, together with additional information which enable the establishment of a connection to the desired subscriber station.

Abstract: A system for placing data in a format for acceptance by a general purpose communications printer, the data originally being in a format for providing a television display to news wire service subscribers, and being originally in a format composed of signals representing a succession of characters. The data is temporarily stored and then read out in segments each containing signals representing the number of characters per line in the printer output, printer control signals are inserted between segments, and the resulting composite signal is then conducted to the printer locations, where it is placed in a form which can be applied to a printer.

Abstract: A closed user group facility in a data transmission system which has a closed user group of terminals accomodated in a switching network, and in which the switching network registers a terminating terminal in response to a request for registration of that designated terminating terminal from another one of the terminals. The registration of the corresponding terminating terminal is with one of codes with which all the terminals accommodated in the switching network can be individually identified. Subsequently when transmitting data (including voice data) from the originating terminal to the terminating one, the switching network controls to permit the transmission of the data from the originating terminal to the terminating one when the switching network has verified that the originating and terminating terminals had already been mutually registered as distant terminals.