NL6702333A - - Google Patents
Info
- Publication number
- NL6702333A NL6702333A NL6702333A NL6702333A NL6702333A NL 6702333 A NL6702333 A NL 6702333A NL 6702333 A NL6702333 A NL 6702333A NL 6702333 A NL6702333 A NL 6702333A NL 6702333 A NL6702333 A NL 6702333A
- Authority
- NL
- Netherlands
- Prior art keywords
- pulse
- transmitter
- windings
- received
- code
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/022—Selective call receivers
- H04W88/025—Selective call decoders
- H04W88/028—Selective call decoders using pulse address codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dc Digital Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
1,119,467. Transmission systems. AMP Inc. 20 Feb., 1967 [4 March, 1966; 15 July, 1966], No. 7947/67. Heading G4H. In a signalling system including a transmitting station and a receiving station, the transmitting station includes an encoder capable of transmitting selected codes of a plurality of characteristic calling codes and each receiving station includes a decoder responsive to a selected one of the characteristic calling codes, each calling code comprising a sequence of characters and each character comprising a sequence of pulses. In the embodiment described data is entered into an encoder at the transmitter by means of a keyboard 70 (Fig. 2A) and stored in a shift register 72 comprising a series of bi-stable stages which store a four digit character in a two out of five code. Under the control of an output driver 73 the data in the register 72 is gated serially to a translating device 75 which includes a relay having two coils W1, W2 connected to be alternately operated by a contact c1. Whenever an output pulse from a set stage of the register 72 is received contact c1 switches its position to either energize or de-energize coil W2 and so open or close contact c2 to control the connection of a battery B1 to the transmitter 74. In this way a serial pulse train is fed from the translator 75 to a transmitter 74 where if required and if for example the transmission is by radio link a single frequency tone may be transmitted when a pulse is received by the transmitter 74 with absence of tone when there is no pulse or alternately one frequency may represent a pulse and a second frequency no pulse. In this case suitable filtering means are required at the receiver. A land line transmitter or an optical transmitter may be used, in the latter case the pulses being used to modulate a transducer capable of biasing for example a laser. At the receiver the complement L of the received pulse train L is also generated and the two pulse trains fed to multi-aperture cores 110 (Fig. 8) having selected windings N c and N s linking the cores through major apertures and windings N x linking all the cores through the minor apertures. The N c windings are selectively connected to the leads 114, 115 on which the two pulse trains are received so that when a receiving station receives its characteristic calling code the first core 01 r is switched to its set state by an initial tag bit and the state of this core is transferred to the next core by each successive bit on the leads 114, 115 so that at the end of the four character code an output signal may be received on output loop 116 of the last core 20 r to illuminate a lamp. To facilitate altering the windings of the cores 110 so that the characteristic code of a receiver may be altered the windings may be connected to a plug board assembly (Figs. 11 and 12, not shown).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53186466A | 1966-03-04 | 1966-03-04 | |
US56562466A | 1966-07-15 | 1966-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL6702333A true NL6702333A (en) | 1967-09-05 |
Family
ID=27063655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6702333A NL6702333A (en) | 1966-03-04 | 1967-02-16 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3596181A (en) |
DE (1) | DE1512840A1 (en) |
ES (1) | ES337517A1 (en) |
GB (1) | GB1119467A (en) |
NL (1) | NL6702333A (en) |
SE (1) | SE347378B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3701970A (en) * | 1970-09-11 | 1972-10-31 | Seeburg Corp | Selecting apparatus and method for phonograph |
US3786424A (en) * | 1972-02-22 | 1974-01-15 | Coaxial Scient Corp | Communications system for data transmission and retrieval |
US3944724A (en) * | 1972-05-18 | 1976-03-16 | Texas Instruments Incorporated | Paging system with selectively actuable pocket printers |
US3772597A (en) * | 1972-05-19 | 1973-11-13 | Collins Radio Co | Code transmission system |
US3906348A (en) * | 1973-08-20 | 1975-09-16 | Chamberlain Mfg Corp | Digital radio control |
US4007422A (en) * | 1973-09-04 | 1977-02-08 | De Staat Der Nederlanden, Te Dezen Vertegenwoordigd Door De Directeur-Generaal Der Posterijen, Telegrafie En Telefonie | Method and apparatus for calling a ground station by an aircraft |
US4048729A (en) * | 1976-03-11 | 1977-09-20 | Fleetwood Furniture Company | Electrical teaching system |
US4127852A (en) * | 1977-04-28 | 1978-11-28 | R. & I.C. Alarms, Inc. | Power use alarm |
EP1303924A2 (en) * | 2000-02-29 | 2003-04-23 | Inari, Inc. | High data-rate powerline network system and method |
US9391631B1 (en) * | 2015-01-27 | 2016-07-12 | Raytheon Company | Processing system with encoding for processing multiple analog signals |
US10397287B2 (en) * | 2017-03-01 | 2019-08-27 | Microsoft Technology Licensing, Llc | Audio data transmission using frequency hopping |
-
1966
- 1966-07-15 US US565624A patent/US3596181A/en not_active Expired - Lifetime
-
1967
- 1967-02-16 NL NL6702333A patent/NL6702333A/xx unknown
- 1967-02-20 GB GB7947/67A patent/GB1119467A/en not_active Expired
- 1967-03-03 SE SE02963/67A patent/SE347378B/xx unknown
- 1967-03-03 DE DE19671512840 patent/DE1512840A1/en active Pending
- 1967-03-03 ES ES337517A patent/ES337517A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3596181A (en) | 1971-07-27 |
GB1119467A (en) | 1968-07-10 |
DE1512840A1 (en) | 1969-05-22 |
SE347378B (en) | 1972-07-31 |
ES337517A1 (en) | 1968-03-01 |
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