Abstract: An information storing apparatus is provided in a radio telephone apparatus having a base unit coupled to a wired telephone line and a radio telephone set. The base unit includes a memory for storing telephone number information and line relay for making or breaking a speech path between the base unit and the wired telephone line. When a registration signal is transmitted from the radio telephone set, the base unit is disconnected from the wired telephone line to break the speech path. Thereafter, if a dial signal from the radio telephone set is received, the received dial signal is stored in the memory as the telephone number information used for a reduced dialog operation. If a calling signal arrives at the wired telephone line while the dial signal is being stored, the calling signal is detected by another telephone apparatus coupled to the wired telephone line. Therefore, the telephone apparatus generates a ringing signal in response to the detected signal.

Abstract: This invention relates to an electro-optical sensor of the CCD type, wherein said optical system is multiple and is capable of forming on said photosensitive zone a plurality of juxtaposed images belonging to different and/or superposed optical fields, and the sequencer controls the simultaneous acquisition by the photosensitive zone of said plurality of images; accumulates said images in said intermediate memory zone, and, via the reading register, controls the transfer of said images from said intermediate memory zone into said outside memory means, as well as the distribution of said images in said outside memory means.

Abstract: In one embodiment, an answer supervision detection unit is disposed intermediate a tandem switch and the public switched network. Typically, the public switched network is two or four wire E & M lines or T1 lines. The E & M lines carry answer supervision information signals. The answer supervision detection unit monitors the E & M lines, detects the information signals, converts those information signals into coded answer supervision signals, and applies those coded signals to loop start lines that extend from the answer supervision detection unit to the tandem switch, the central office owned by the regional Bell operating system and the customer owned pay telephone. Intermediate the pay telephone and the central office is a decoder that senses the coded answer supervision signals (typically the A,B,C and D signals of the DTMF phone) and generates pseudo-answer supervision or strictly control signals to the customer owned pay telephone.

Abstract: In a cellular radiotelephone system, a geographical area is divided into radio zones, each of which comprises a cell set, and a plurality of transponders which relay signals from portable units to the cell set, and from the cell set to the portable units. The use of transponders reduces the talk-back distance. This, in turn, results in a reduction of the power requirement of the portable units, which can therefore use smaller batteries and smaller transmitter components with a resulting reduction in size and weight. No hand-off takes place as the portable unit moves from transponder to transponder within the radio zone. Thus, the subdivision of the radio zone into transponder areas does not overburden the hand-off supervisory system.The number of channels assigned to a radio zone can be changed to suit conditions.

Abstract: A telephonic communications system (FIGS. 1 and 2) designed to use the availability of ordinary subscriber telephone lines to which a telephone instrument (312) is conventionally attached. Whenever it is desirable for a caller (306 or 309) to transmit data from a calling telephone (305, 308 or 316) a special code is input to the called telephone (312 or 301) which, through detection circuitry, activates an intercept system (184A of FIG. 11) within the called telephone, which inhibits audible ringing of the called telephone instrument and connects a second system (FIGS. 10 and 14) incorporated within the same called telephone instrument for auto-tuning, processing, and re-transmitting from the called telephone subsequent received data to a remote addressable portable data unit (302 or 311). The remote data units (302 and 311) communicate with the telephone instrument (301 and 312) via a radio frequency data link, through which it may either receive data from or transmit data to the telephone instrument.

Abstract: A reading out circuit for a series of linear image sensors having end light elements masked and being arranged in a staggered line. The data is written in parallel into a series of multi-location storage elements, beginning with the masked light element being stored in a central location. The storing is then wrapped around so that the masked value is overwritten.

Abstract: A telephone capable of operation in a cordless or corded mode. The telephone is basically operative in the cordless mode through the provision of electronic transmitting and receiving elements individual to the base unit and the portable handset. The base unit and the handset are provided with conversion switching circuits coupled to be responsive to the connection of a multi-conductor cord between the base unit and the handset to convert the telephone to corded operation. The conversion circuits disable the transmitting and receiving circuits in both the base and handset and permit the telephone signals to be conductively transmitted between the units through the conductors of the cord.

Abstract: A cellular radiotelephone system providing service to remote units having a voice operated transmitter (VOX) is disclosed. If the regularly scheduled periodic signal quality measurements made by fixed site equipment indicate that the remote unit signal has not been received for a predetermined number of measurements, an audit request is transmitted to the remote unit. The remote unit responsively keys its transmitter for a predetermined period of time. A first special scan is programmed into the regular process such that the fixed site equipment may continue with its regular process until the signal quality measurement must be made. A second measurement is made following the first and if the two signal quality measurements made while the VOX remote unit is known to be transmitting agree, system reconfiguration for the service of this remote unit may be implemented by the cellular system.

Abstract: The invention concerns call-charge payment of telephone calls from payphone telephone instruments (PI) using a credit card, or the like. The invention provides credit transaction arrangements for automatic call-charge payment of calls established through a telecommunications network from payphone instruments (PI). The payphone (PI) is provided with a credit card reader (CRM) which when activated causes the payphone (PI) to automatically set-up a path (NAP) through the telecommunications network to credit transaction equipment (CCE) at a remote location (NP) within the network. Initially, a first record data (HEAD), being relevant to prior call-charge payment, is transmitted over the path (NAP), validated and stored (CDS) at the credit transaction equipment (CCE), and the path is promptly disconnected. The subscriber then sets-up a communication path through the network to a desired called subscriber for communication purposes.

Abstract: A system incorporating a cluster of several telephone stations or terminals to interface with one or more frequently called remote data stations for economy of dial-up connection in accommodating communication with multiple terminals of the cluster during a single call to a remote station. With a call from one terminal to a remote data station, a transmit-receive unit interfaces the cluster with the data station setting the terminals in the cluster in a polling sequence to accommodate additional communications. The system preserves an "off-hook" state polling the individual terminals in the cluster to accommodate further communication from the cluster terminals to the central data station. Polling is facilitated by a cluster counter in the transmit-receive unit coordinated with logic indicating the state of each terminal in the cluster.

Abstract: A cellular radiotelephone system including plurality of channels with a mechanism for dividing the channels into two diverse sets based on a division of the control channels used to transmit control information. The division is effected by providing that one group of subscriber sets begins scanning the control channels at the first control channel and only scans up to a maximum number of control channels, and a second group of subscriber sets begins scanning at another control channel not scanned by the first group.

Abstract: An integrated cargo transportation security system is provided for a fleet of enclosed cargo transportation containers. Each container includes a subsystem including a door sensor for sensing access door opening and closure, a module unit including a connecting frame for a removable module and cabling leading to the door sensor. The identically appearing removable modules are configurable as active and passive. Each locks into the unit. The system includes a central data collection and processing facility for processing cargo trip data collected by at least one active module during a cargo trip of the container into a roadmap indicating travel route of the container during the trip and the time and location of significant event such as unauthorized opening of the cargo door.

Abstract: A personal portable telephone (11) allows the user access to the cellular radio network via a number of different gateways including a communal unit (15, 16), user's mobile telephone set (9), home telephone (13) or office PABX (14). The telephone (11) can also be used as a paging unit for use within the cellular radio network. The communal radio unit (15) is a multi-channel arrangement capable of servicing a large number of personal telephones within its service area which is small compared to that of a normal cellular radio cell. Communal units (15) may be transportable and located in public areas such as railway stations, airports and on trains or coaches. The telephone (11) automatically transmits its identification number to a gateway (9, 13, 14, 15, 16) when it enters its service area enabling the subscriber to be accessed by callers without their knowing his whereabouts.

Abstract: Dynamic beam current reserve margin in television camera tubes necessary for the neutralizing of bright spots, which is accumulated on the camera tube signal electrode during a multiplicity of successive picture field periods after which a signal electrode is scanned by the electron beam during several field periods in interlaced line pattern and the video signal level of the third field is measured. In this measurement, the signal level is below a first predetermined threshold value, the dynamic beam current reserve is sufficient and the procedure is terminated. The threshold is reached or exceeded, the dynamic rise of the beam current is gradually magnified and further cycles of charge and scanning are performed, this time with measurement of the video signal during the second field.

Abstract: A vehicle mounted mobile transceiver (11) communicates via a secondary mobile unit (51) with a short range portable unit (10). The portable unit (10) can be either a cordless microphone or a transceiver. The portable unit (10) allows a remotely positioned operator to transmit messages to a base station (13). To ensure security and reliable operation, the portable and vehicle mounted units use digitized codes for ID and instruction purposes. These codes are newly generated from time to time by the vehicle mounted unit and are imparted to the portable unit via a battery charging interface. An improved remote squelch detect is also provided. The improved remote squelch detect substitutes the normal input to the vehicle primary mounted mobile transceiver (11) squelch gate for an audio signal.

Abstract: A slide projector control module and control system to operate one or more slide projectors located at one or more different locations, each slide projector having a slide tray and being connected with the control module. Conventional telephone lines are used to connect each slide projector and each module at each location for viewing the same slide at all locations. Slide projectors at all locations are capable of being rendered operative and the slide projector is operative only at its location with its associated control module when properly selected. Each module includes switches to connect and disconnect the remote and local projector from a key pad which provides touch tone signals capable of being muted from telephone lines. The control system is operable from a local or remote site to permit conferences to discuss a series of visuals and to recall the visuals as needed at each site of a multi-site and/or multi-person conference.

Abstract: A mobile paging call back system is provided includes a control unit interconnecting a radio pager, a memory, an indicator, a control switch, and an automatic dialer, with the control unit including a logic circuit programmed: (i) to provide verification that valid data representing a telephone number has been received from a radio pager, (ii) to store that data in the memory after verification, (iii) to activate the indicator, after the verification, to provide a system user observable signal indicating that valid data has been received, and (iv) to either transfer the stored data from the memory to the automatic dialer means for use therein to dial a mobile radio telephone or to erase that data from the memory in response to system operator activation of the control switch. Preferably, the system of the subject invention is mounted on the dashboard of a mobile vehicle. A related method is also disclosed.

Abstract: A multi-frequency (MF) signal transmitting control apparatus and method for use in a cordless telephone system, according to which a dial signal discrimination code within a transmitted dial signal causes an audio circuit to be turned off for a sufficient length of time to enable all of a multi-frequency signal to be sent to an exchange. As a result of the audio circuit being turned off at this point, the amount of noise received by a listener during a conversation in which dialing buttons are accidentally pressed by the bearer of the device is reduced.

Abstract: A multi-function cellular television system includes transmitting antennas located in an array such that the transmitted signals of adjacent antennas are of substantially differing polarity. The system provides for a variety of two-way communication services including television, both public and private programming, digital two-way transmission, special video teleconferencing, radio programming and telephone services. A low power output coupled with a wide bandwidth in the 27.5 to 29.5 GHZ millimeter wave band region is employed along with very high Q filtering intermodulation and interference reduction circuitry. The system has the ability to transmit, retransmit and receive numerous simultaneous signals with little or no modulation distortion or interaction. Further reduction of distortion is achieved through the use of modulation diversity, frequency diversity and space diversity.

Abstract: A telephone light adapter comprised of an electronic control box connected to a standard telephone and light fixture, the adapter energizing the light fixture when the control box is in an automatic mode for announcing an incoming telephone call, the light fixture remaining energized for a specified period of time after the termination of the call. The control box also energizes the light fixture when the telephone receiver is moved from the cradle position for dialing or when an extension telephone is in use. A three-position switch located on the control box permits the selection of mode of operation while a user switch permits manual operation.