Showing papers on "Wireless published in 1986"

Wireless telephone system

Abstract: A wireless telephone communication system for wireless, voice, data or voice and data terminals comprising apparatus at a central location for receiving one or a plurality of signals for communication with selected ones of wireless communication terminals, apparatus for converting the signals to spread spectrum radio frequency signals, a leaky transmission line located in a communication region, apparatus for applying the spread spectrum radio frequency signals to the transmission line for electromagnetic radiation within the region, at least one wireless communication terminal adapted to receive a predetermined one of the spread spectrum radio frequency signals and for demodulating it into an intelligible signal.

Wireless transmission from the television set to the televison station

Abstract: Query signals are transmitted by wireless means from the television station to the television set. Response units at receiver locations have a radio frequency transmitter send a response to the station inquiry sent on horizontal lines of the T.V. signal at controlled times identifying each station. This response is a simple r-f beep synchronized with the T.V. signal, in such a way that each set transmitter emits the beep only in its unique time slot. Simplified response units are tuned to the standard intermediate frequency of the T.V. sets and thus need not be wired in and need not have a channel selector.

Installation with portable, wireless telephone sets

Abstract: In an intallation containing at least one stationary unit (5) with a radio transmitter and a ratio receiver, both with short range, and at least one, preferably several portable, wireless telephone sets (4) with a radio transmitter and a radio receiver, both with short range, for exchanging telephone messages with one of the stationary units in the installation (1, 2, 3) the stationary units (5) are each adapted simultaneously to exchange telephone calls with more than one portable telephone set (4) on radio speech channels, adaptively selected among a plurality of radio speech channels common to all radio transmitters (9, 31) and radio recivers (10, 32), there also being included a radio exchange (6) to which the stationary units (5) are connected, this radio exchange being adapted to switch a telephone call with decreasing intelligibility between a portable telephone set (4B) and a first stationary unit (5A) to a telephone call with increasing intelligibility between the same portable telephone set and a second stationary unit (5B). A compressor (20, 41) coacts with each of the radio transmitters (9, 31) for time-compressing the speech signals, and an expander (12, 42) coacts with each of the radio receivers (10, 32) for time-expanding the speech signals.

Wireless phone system communicatively combined with a computer

Abstract: A wireless phone system comprises a master phone unit connectable to a telephoneline, and a wireless phone receiver connectable to the master phone unit, the wireless phone receiver comprising a computer circuit for processing data as a computer, a wireless circuit for wirelessly transmitting information including the computer data, microphone means for inputting sound information, speaker means for outputing the sound information, and switching means for selecting whether the microphone means and the speaker means are connected with the computer circuit, or not. The master phone unit has a computer circuit.

Pocketable wireless transmitter and receiver

Abstract: A wireless communicating device comprises a receiving circuit for wirelessly receiving message serial number information and a display for displaying the message serial number information. Preferably and additionally, the device may comprise a transmission circuit for wirelessly transmitting the message serial number, preferably, repetitively.

Remote control holder

Abstract: Remote control holders are provided for wireless and wired remote control units. A spring recoil mechanism provides automatic takeup of cord connecting the remote control unit to an audio-visual component, such as a stereo receiver or television video cassette player. For wireless remote control units, a vertical support is rotatably supported on a horizontal base. The vertical support has a number of sides that corresponds to the number of pockets for holding remote control units.

Cordless phone data logger

Abstract: A remote data logging and telecommunication system utilizing a cordless telephone as a convenient two-way wireless link between a location of data collection and storage and a distant station. The distant station can command the data logging system to log, read or change logging protocols. Password and code word protection is available for the system.

Method for wireless transmission of audio information

Abstract: A method is described for wireless transmission of different audio information, for example in museums, exhibitions or amusement parks. Transmission devices are allocated to the exhibits which transmit in wireless fashion the information associated with the respective exhibit to visitors carrying suitable receiving devices. This information is contained in a memory, for example an endless cassette player, assigned to the transmitting device which is started up by the visitor via a second wireless transmission path. The start-up pulses can be transmitted via ultrasound or infrared radiation.

Procedure and means for wireless measurement of the speed of small craft such as a surfboard or a boat

Abstract: A procedure and apparatus for wireless measurement of the speed of a small craft, such as a surfboard or a boat, wherein the speed of the craft is measured with the aid of a speed pick-up by means of a separate measuring and transmitting device attached to the craft's bottom and in wireless fashion transmitted to a separate receiver device. In order to achieve efficient wireless measurement, the speed of the craft is detected from the voltage induced in the windings of an electric generator connected to a rotating speed measuring element and is telemetrically transmitted to the receiver device by using a magnetic field, and the electric energy required for the transmitter device is formed of the voltage induced by said electric generator.

Loading and unloading controller for manned loading and unloading vehicle

Abstract: PURPOSE: To transmit loading and unloading operation information forth and back between a loading and unloading controller and a manned loading and unloading vehicle even in a wide loading and unloading operation area and to improve the effi ciency of loading and unloading operation by arranging plural wireless modems dispers edly in the loading and unloading operation area. CONSTITUTION: Forklifts 1-j (j=1WN) are arranged in the loading and unloading area as the manned loading and unloading vehicles which perform the loading and unloading operation. A CPU 2 for control is arranged as the loading and unloading controller in the loading and unloading area. Then, the wireless modems 5-j which transmits the loading and unloading operation information forth and back among the forklifts are arranged dispersed so as to enable a communication with any place. Those modems 5-j and CPU 2 are connected mutually through a communication network which is a local area network. Consequently, the loading and unloading controller and loading and unloading vehicles can transmit and receive the loading operation information even in the wire loading operation area. Thus, the efficiency of the loading and unloading operation can be improved. COPYRIGHT: (C)1988,JPO&Japio

A 1-Mb/s IR LED array driver for office wireless communication

Abstract: The design of the 1-Mbit/s driver for IR LED arrays enables a wireless IR link to accommodate several voice and data users. With the coming availability of new and economical IR LED devices and with special optical filtering it is estimated that IR LED switching rates will be approaching the 5-Mb/s range. An IR wireless link in an office would thus be enabled to handle video signals.

Device for preventing collision of unmanned vehicle

Abstract: PURPOSE: To improve responsiveness, by intercepting a bit of information transmitted from each unmanned vehicle to another unmanned vehicle, and judging the possibility of collision by the unmanned vehicle itself, based on a bit of intercepted information. CONSTITUTION: Wireless modems 3-1, 3-2,...3-N with antennae 2-1, 2-2,...2-N, are provided on each of the automatically guided vehicles 1-1, 1-2,...1-N. And appropriate number of wireless modems 5 with antennae 4 are provided on a various places such as a ceiling, etc., and a managing computer 6 is connected to the modem 5 through a communication network by a local network. A transmission/reception frequency f 1 between the wireless modems on a ground side and the unmanned vehicle, is used commonly, and the interception of the bit of information transmitted to another unmanned vehicle can be performed by each automatically guided vehicle. The unmanned vehicle judges the possibility of the collision with another unmanned vehicle in a case that is travels without changing a course, based on the bit of intercepted information, and it stops if the possibility of the collision exists. In this way, it is possible to accelerate the responsiveness, and to secure safety. COPYRIGHT: (C)1988,JPO&Japio

Wireless local transmission system

Abstract: PURPOSE: To prevent an erroneous operation due to plural transmission signals produced at the time of operating an optical wireless operating device once by receiving an optical wireless signal, performing the time delay operation for a prescribed time in case of storing the address data of terminal equipment and making the operation data of the same address received within the time invalid. CONSTITUTION: The optical wireless signal is received by the receiving part 7 of an optical wireless repeater 5 and the address data and the operating data are detected. A master machine 1 recognizes that an illumination load 3 operates and returns a processing completion signal including the address data of the terminal equipment 2 to the optical wireless repeater 5. When the address data of this processing completion signal is stored in an address data memory part 9, a timer 11 is set to start the limiting time operation. When the optical wireless signal transmitted from the optical wireless operating device 6 is received by the receiving part 7, it is compared with the address data stored in the address data memory part 9 in a comparison part 10. Since the both address data naturally coincide, the comparison part 10 makes the operating data of the receiving part 7 invalid. COPYRIGHT: (C)1987,JPO&Japio

Subscriber equipment for wireless digital telephony

Abstract: A base-band processor provides control of conversion of PCM signals at one bit rate to other bit rates. It converts received digital signals to voice signals and vice versa. It also provides echo cancellation where it uses dynamic memory to store received signals. PROM's store the echo cancellation program information as well as that for utilisation of the processor as a control processor.As a control processor it signals to the frequency synthesiser the frequency of operation for communication to the base station. The processor is directly coupled to a modem processor which is able to access the base band processor memory. This processor sends its signal at a predetermined sampling rate which are converted to analogue signals. The analogue signals are subjected to a cancellation process to reduce distortion. These signals are converted to an IF for addition to the synthesiser frequency to result in an HF signal for transmission

Message regenerating device in automatic answering telephone set

Abstract: PURPOSE:To handle easily and make it available even at the distant place by using the device usually as a phone incorporating it with a wireless phone, and listening the recorded contents by a remote control from the wireless phone at tape regeneration. CONSTITUTION:When a signal is sent from a circuit 1 a detector 3 detects it, informing it from a supervising part 14 to the transfer unit 16, transmitting it to wireless phone B. When a switch 24 is set 'ON', off hook condition arises, transmitting it to a watch part 14, closing the circuit 1 at a connected part 5, and enabling the phone B to communicate with the calling-phone. Then, when the phone rings and transmits a message in the condition that an operative part 13 is set over the caretaker phone, the connected part 5 closes the circuit 1, and at the same time when a reply part 8 replies, a record preparation part 9 actuates to record the message on the tape. When regenerating the tape, the message can be heard not only by a speaker 11, but by the phone B. The message can be heard even in a distant place from the caretaker phone device A.

Wireless zone deciding system

Abstract: PURPOSE:To enable a mobile station to select a base station by simple constitution by making the base station that received radio wave from the mobile station send out a replay signal at timing having fixed relation with the receiving level, and making the mobile station accept the first answer signal. CONSTITUTION:When a mobile station 9 sends out a transmission signal S that selects base stations 81-83, and waiting for a answer signal R, a base station that received 10 the signal S measures receiving level in a level measuring section 11. A control section 12 stores the value of receiving level measured by a processor 14 in the measuring section 11 in a register 15, and compares the value with a reference level stored in a memory 17, determines delay time ti until transmission of a signal R, sets corresponding time to a timer 16 and sends out the signal R from a transmitting section 13 when time out. The mobile station 9 receives the signal R sent out first, and reads out base station discriminating information to determine the base station, and at the same time, sends out a signal toprohibit sending of the signal R. Selected base station connects the received information to an exchange 7.

Wireless transmitting receiving system

Abstract: PURPOSE:To make a cost low-priced, to prevent simultaneous outgoing and to reduce the communication inability by transmitting and receiving by the same frequency between a main body and a terminal device, changing the time length of the call signal for every terminal device and entering the communication condition after discrim inating that other terminal device will not generate before and after a call signal is sent from the terminal device. CONSTITUTION:Before the terminal device 2 generates a call signal, first, the device enters a receiving condition and it is confirmed whether other terminal devices 3-5 are communicating with the main body 1 or not. At respective terminal devices 2-5, the time of the call signal is set so that it may become the longest in the sequence according to the importance. For example, when the priority sequence of the terminal devices 2-5 is the sequence of the terminals 2-5, the time length is four seconds for the terminal device 2, three seconds for the terminal device 3, two seconds for the terminal device 4 and one second for the terminal device 5. In this way, the higher the priority is, the easier the communication condition is entered, and the disturbance such as the same frequency and the simultaneous call can be avoided. Since communica tion can be executed by the same frequency, the main body 1 and the terminal devices 2-5 can be low-priced with a simple constitution.

Article manufacturing and controlling system

Abstract: PURPOSE:To eliminate stationary transmission of a fixed communication apparatus by detecting a work advancing into a range in which a mobile communication apparatus can receive communication, while generating the start command of wireless communication with the mobile communication apparatus to the fixed one CONSTITUTION:A mobile communication apparatus 10 has a function for storing and transmitting the production information of a car body 2 A fixed communication apparatus 20 performs wireless communication with the mobile one 10 through an antenna 21 Also, when the car body 2 advances on a transfer path 1 within a range DE in which the mobile apparatus 10 can receive the information of the fixed one 20, a detector 31 detects said information and a process controlling computer 40 for sending the signal commands the fixed apparatus 20 to start the wireless communication with the mobile one 10 Further, if the range DE is in front of an operation station the command of operation is given to the car body 2 on the basis of the production information of mobile apparatus 10 received by the fixed one 20 Also, if the range DE is immediately in rear of the operation station, command or the like is given to the fixed apparatus 20 to transmit the signal for write the production information related to the operational results in the operation station into the mobile apparatus 10

Arrangement for wireless information transmission by means of electromagnetic waves at an extremely low frequency

Abstract: For wireless information transmission by means of electromagnetic waves at an extremely low frequency, it is proposed to produce a periodically alternating ring current on a horizontal, large-mesh conductor loop. The already existing high-voltage supply network of the Federal Railway system is advantageously used to form the conductor loop, in that a plurality of balanced high-voltage lines, which connect the substations of the railway, are combined to form a ring and have an unbalanced ring current applied to them.

Operational control device of floor heating

Abstract: PURPOSE:To contrive to improve the aesthetic appearance and at the same time to eliminate the danger to a user by a structure wherein a floor heating equipment is operated over the wireless and the transmitting part of wireless signal, the detecting part of operating conditions and a calculating part are housed in an air conditioner main body. CONSTITUTION:A room temperature detecting part and a detecting part of operating conditions (cooling or heating, turning-on or -off of a compressor, and the like) of an air conditioner are provided on the control device 4 of an air conditioner main body 2 and the judging part of the necessity of the operation of a floor heating equipment 1 is provided on the controlling part 3 of the floor heating equipment 1. Consequently, as for the controlling part, only the increase of the number of parts for the judging part is enough. In addition, in order to transmit the wireless control signal for the floor heating equipment from the air conditioner main body 2, a transmitting device to output the wireless signal for controlling the floor heating, which is outputted from the control device 4, is installed on the front surface and underside of the air conditioner.

Wireless controlling system

Abstract: PURPOSE:To control an object of controlled system at minute pitch by including main controlling information and auxiliary controlling information in information of one frame and utilizing the auxiliary controlling information for imminent control. CONSTITUTION:One frame 31 consists of main controlling information 311 and auxiliary information 312 and an error check redundant bit 313, and a signal constituting such frame is transmitted repeatedly. Controlling data for plural controlled system are contained in the information 311 and information 312 in time division system. The information 311 is constituted of, for instance, data of P1, P2-Pn, and information 312 is constituted of data of i1, i2-in. The redundant bit 313 is selected and inserted data C1, C2-Ck to make all data inclusive of information 311, 312 a fixed value. Series data of such constitution are inputted to the input terminal of a series/parallel converting circuit 35 and converted to parallel data, and shifting position of the object of controlled system is controlled accurately.

Exchange for connecting access

Abstract: PURPOSE:To utilize frequency and to scale down a portable wireless equipment by installing a portable telephone radio station connected to a wire communications exchange network at any place and carrying out an access and a call in a large zone and a small one, respectively. CONSTITUTION:In case of accessing a called party, it is carried out in the large zone because a radio call transmission station transmits a signal. When a radio circuit is set between a portable telephone set 9 and the portable telephone radio station 10, the stting is executed in the small zone since the portable telephone wireless station 10 is installed at any place. After a party is checked to be informed and called, the called party is connected to a calling party. When the called party is not present, an incoming call is informed to access the called party, which is connected to the calling party.

Local radio communication

Abstract: The present invention relates to a wireless PBX network wherein direct sequence spread spectrum multiple access is used for voice and data communications to support a plurality of local-local and local-external calls. The present wireless PBX arrangement comprises a plurality of local user transceivers 10i using a first separate unique chip sequence patterns for information communication and a second common chip sequence pattern for call-set up; and a central PBX 14 comprising (a) a plurality of PBX transceivers 15i, each of which uses a separate first chip sequence pattern which is matched to a corresponding local user transceiver; (b) a switching means 18 for interconnecting local users to each other or to an external network via the associated PBX transceivers; and (c) a call set-up receiver 19 responsive solely to initial call set-up information sent by any user using the second common chip sequence pattern. Optional selection diversity or equal gain combining diversity and/or error correction encoding may also be included in the transceivers.

Extra low frequency long range wireless signalling/paging pulse sending apparatus

Abstract: This signalling apparatus, by being a stored energy quick discharge pulse system, enables a series of high power pulses to be obtained from only a very small average power input. This signalling apparatus as well as for long range communication can also be adapted for local uses, such as mines or any other underground activities, by using lower pulse voltages and smaller antenna dimensions to restrict the range.