US1744036A - Process for radiotelegraphic or radiotelephonic communication - Google Patents
Process for radiotelegraphic or radiotelephonic communication Download PDFInfo
- Publication number
- US1744036A US1744036A US67451A US6745125A US1744036A US 1744036 A US1744036 A US 1744036A US 67451 A US67451 A US 67451A US 6745125 A US6745125 A US 6745125A US 1744036 A US1744036 A US 1744036A
- Authority
- US
- United States
- Prior art keywords
- station
- circuit
- radiotelegraphic
- energy
- transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
Definitions
- the present invention relates to improvements in the processes for radiotelegraphic or telephonic communications in which a primary station Whose emanations are received 3 by a secondary station, may, in turn, receive from the latter, being thus able to secure a junction, although there is no energy supply at the secondary station,
- the primary station comprises a source of oscillations and an emitting circuit; the secondary has a receiving circuit with no local energy source, and in which is inserted a manipulating or modulating device (telephonic or telegraphic apparatus).
- a manipulating or modulating device telephonic or telegraphic apparatus
- the receiving circuit is connected, directly or inductively, to the emitting circuit, and the ordinary amplifying devices are used.
- the communicating stations must be tuned; this tuning is obtained in the well-known means.
- an aerial 1 is fed by the ordinary generating device comprising an audio-tube 2, plate battery 4, self-inductance 5, filament battery 12, tuning condenser 13 and variometer 10.
- the circuit E works as an emitting one, and assuming that the stations E and R are tuned, if one manipulates, by making a cut 9, in the circuit R, the effect of this manipulation will be received on the circuit E. Further, if a transformer 7--8, with am plifying device 9, is COIlDGC'EGCl'WllCh the emitu' ting circuit Q-3l513-612, the signals of the circuit R will be received the telephone 11, at the outlet of the amplifying device.
- these signals may be produced by a telephonic modulation as Well as a telegraphic one, according to whether a microphone or key is used.
- a system of radio communication comprising a main transmitting station, an oscillator tube and transmitting aerial therefor at the main station, means for adjusting the frequency of the oscillator, means for tuning the transmitting aerial, a secondary station Without energy source having an aerial arranged to be tuned to the frequency of the transmitting aerial of the main station, means wholly at the secondary station for modulating the electrical energy induced in its aerial according to a signal to be transmitted to the main station, and an amplifying receiver at the main station operatively connected with the oscillator tube and its transmitting aerial for receiving the modulations produced at the secondary station.
- a system of radio communication comprising a main station, a secondary station, a tuned circuit at the secondary station without energy source, means for varying the electrical condition of said tuned circuit, and unitary means at the primary station for transmitting unmodulated radio waves to the tuned circuit at the secondary station and responsive to the variations in the electrical condition of said tuned circuit to render the same perceptible at the primary station.
- a system of radio communication comprising an audion tube oscillator and circuit therefor having a plate-filament circuit and a grid-filament circuit, an antenna connected With the plate circuit and a radio receiving set connected with the grid circuit, a remote non-generating circuit arranged to receive waves radiated from said antenna, and means for modulating the Waves in said non gencrating circuit, said antenna and non-generating circuit being so related that the modulated Waves will in effect be transmitted to the said antenna, and said radio receiving set being arranged to respond to said modulations, substantially the entire energy of all of said Waves being derived from a common source.
- the method of radio communication which consists in transmitting radio waves of a length above ten meters from a primary station to a resonant circuit without energy source at a secondary station, modulating said Waves in circuit at the secondary station with signal modulations, and transmitting the modulated Waves from the secondary station to the primary station Without additional energy.
- the method of radio signaling which comprises generating radio frequency Wave energy at one station, transmitting the same to a second station, transforming the Wave energy received at the second station Without additional energy into current oscillations, modulating said current oscillations at the second station to produce modulated Wave energy, and receiving and demodulating the modulated Wave energy at a point remote from the second station.
- the method of radio signaling which comprises generating radio frequency Wave energy at one station, transmitting the same to a resonant circuit Without energy source at a second station, modulating the wave energy received thereat, receiving said modulated ave energy through space at a, point remote from said second station, and detecting the modulations from said received modulated Wave energy.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Description
Jan. 21, 1930. E. BRARD 1,744,036
PROCESS FOR RADIOTELEGRAPHIC 0R RADIOTELEPHQNIC COMMUNICATION Filed Nov. 6. 1925 Patented .lan. 21, 1936 i inen EVENOR BEARD, OF PARIS, FRANCE, ASSIGNOB TO SOCIETE ANONYZME DES ONDES DIRIGEES, OF PARIS, FRANCE PROCESS FOR RADIO'IELEGRAPHIC R RADIOTELEPHONIG COMMUNICATION Application filed November 6, 1925, Serial No. 67,451, and in France November 1924.
The present invention relates to improvements in the processes for radiotelegraphic or telephonic communications in which a primary station Whose emanations are received 3 by a secondary station, may, in turn, receive from the latter, being thus able to secure a junction, although there is no energy supply at the secondary station,
The primary station comprises a source of oscillations and an emitting circuit; the secondary has a receiving circuit with no local energy source, and in which is inserted a manipulating or modulating device (telephonic or telegraphic apparatus).
At the primary station, the receiving circuit is connected, directly or inductively, to the emitting circuit, and the ordinary amplifying devices are used. Of course, the communicating stations must be tuned; this tuning is obtained in the well-known means.
In the drawing is illustrated as an example a diagrammatic arrangement embodying the invention and giving the best results.
At the primary station, an aerial 1 is fed by the ordinary generating device comprising an audio-tube 2, plate battery 4, self-inductance 5, filament battery 12, tuning condenser 13 and variometer 10.
At the secondary station R, is provided an aerial 7 with tuning condenser 8, constituting a circuit tuned to the waves emitted by the primary station.
When the circuit E works as an emitting one, and assuming that the stations E and R are tuned, if one manipulates, by making a cut 9, in the circuit R, the effect of this manipulation will be received on the circuit E. Further, if a transformer 7--8, with am plifying device 9, is COIlDGC'EGCl'WllCh the emitu' ting circuit Q-3l513-612, the signals of the circuit R will be received the telephone 11, at the outlet of the amplifying device.
Moreover, these signals may be produced by a telephonic modulation as Well as a telegraphic one, according to whether a microphone or key is used.
Having described my lnventron, what I claim is 1. A system of radio communication comprising a main transmitting station, an oscillator tube and transmitting aerial therefor at the main station, means for adjusting the frequency of the oscillator, means for tuning the transmitting aerial, a secondary station Without energy source having an aerial arranged to be tuned to the frequency of the transmitting aerial of the main station, means wholly at the secondary station for modulating the electrical energy induced in its aerial according to a signal to be transmitted to the main station, and an amplifying receiver at the main station operatively connected with the oscillator tube and its transmitting aerial for receiving the modulations produced at the secondary station.
2. A system of radio communication comprising a main station, a secondary station, a tuned circuit at the secondary station without energy source, means for varying the electrical condition of said tuned circuit, and unitary means at the primary station for transmitting unmodulated radio waves to the tuned circuit at the secondary station and responsive to the variations in the electrical condition of said tuned circuit to render the same perceptible at the primary station.
3. A system of radio communication comprising an audion tube oscillator and circuit therefor having a plate-filament circuit and a grid-filament circuit, an antenna connected With the plate circuit and a radio receiving set connected with the grid circuit, a remote non-generating circuit arranged to receive waves radiated from said antenna, and means for modulating the Waves in said non gencrating circuit, said antenna and non-generating circuit being so related that the modulated Waves will in effect be transmitted to the said antenna, and said radio receiving set being arranged to respond to said modulations, substantially the entire energy of all of said Waves being derived from a common source.
4. The method of radio communication which consists in transmitting radio waves of a length above ten meters from a primary station to a resonant circuit without energy source at a secondary station, modulating said Waves in circuit at the secondary station with signal modulations, and transmitting the modulated Waves from the secondary station to the primary station Without additional energy.
5. The method of radio signaling which comprises generating radio frequency Wave energy at one station, transmitting the same to a second station, transforming the Wave energy received at the second station Without additional energy into current oscillations, modulating said current oscillations at the second station to produce modulated Wave energy, and receiving and demodulating the modulated Wave energy at a point remote from the second station.-
6. The method of radio signaling which comprises generating radio frequency Wave energy at one station, transmitting the same to a resonant circuit Without energy source at a second station, modulating the wave energy received thereat, receiving said modulated ave energy through space at a, point remote from said second station, and detecting the modulations from said received modulated Wave energy.
In testimony whereof I afiix my signature.
EVENOR BEARD.
2 V i r 1,744,036
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR589082T | 1924-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1744036A true US1744036A (en) | 1930-01-21 |
Family
ID=40344557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US67451A Expired - Lifetime US1744036A (en) | 1924-01-17 | 1925-11-06 | Process for radiotelegraphic or radiotelephonic communication |
Country Status (4)
Country | Link |
---|---|
US (1) | US1744036A (en) |
FR (2) | FR589082A (en) |
GB (1) | GB256828A (en) |
NL (1) | NL18784C (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631280A (en) * | 1949-08-31 | 1953-03-10 | Rca Corp | Remote-control system for radio receivers and the like |
US2715725A (en) * | 1946-07-31 | 1955-08-16 | Frank H Jackson | Circuit tester for electronic fuzes for munitions |
US2927321A (en) * | 1956-01-26 | 1960-03-01 | Donald B Harris | Radio transmission systems with modulatable passive responder |
US3243801A (en) * | 1963-11-19 | 1966-03-29 | Lab For Electronics Inc | Radar system for identifying targets |
US5523749A (en) * | 1991-04-03 | 1996-06-04 | Integrated Silicon Design Pty. Ltd. | Identification system for simultaneously interrogated labels |
US20090009335A1 (en) * | 2007-07-03 | 2009-01-08 | Robert Stewart | Inductively coupled loop antenna for a radio frequency identification reader |
WO2009008861A1 (en) | 2007-07-10 | 2009-01-15 | Allflex Usa, Inc. | Inductively coupled extension antenna for a radio frequency identification reader |
US20090015383A1 (en) * | 2007-07-10 | 2009-01-15 | Robert Stewart | Inductively coupled extension antenna for a radio frequency identification reader |
US20100052869A1 (en) * | 2008-09-04 | 2010-03-04 | Robert Stewart | Combination full-duplex and half-duplex electronic identification tag |
US20110205026A1 (en) * | 2009-10-09 | 2011-08-25 | Leigh Bateman | Radio frequency identification reader antenna having a dynamically adjustable q-factor |
US20110210823A1 (en) * | 2009-10-09 | 2011-09-01 | Leigh Bateman | Hdx demodulator |
-
0
- NL NL18784D patent/NL18784C/xx active
-
1924
- 1924-01-17 FR FR589082D patent/FR589082A/en not_active Expired
- 1924-11-15 FR FR30305D patent/FR30305E/en not_active Expired
-
1925
- 1925-11-02 GB GB27526/25A patent/GB256828A/en not_active Expired
- 1925-11-06 US US67451A patent/US1744036A/en not_active Expired - Lifetime
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2715725A (en) * | 1946-07-31 | 1955-08-16 | Frank H Jackson | Circuit tester for electronic fuzes for munitions |
US2631280A (en) * | 1949-08-31 | 1953-03-10 | Rca Corp | Remote-control system for radio receivers and the like |
US2927321A (en) * | 1956-01-26 | 1960-03-01 | Donald B Harris | Radio transmission systems with modulatable passive responder |
US3243801A (en) * | 1963-11-19 | 1966-03-29 | Lab For Electronics Inc | Radar system for identifying targets |
US5523749A (en) * | 1991-04-03 | 1996-06-04 | Integrated Silicon Design Pty. Ltd. | Identification system for simultaneously interrogated labels |
US5793305A (en) * | 1991-04-03 | 1998-08-11 | Turner; Leigh Holbrook | Article sorting system |
US20090009335A1 (en) * | 2007-07-03 | 2009-01-08 | Robert Stewart | Inductively coupled loop antenna for a radio frequency identification reader |
US20090015383A1 (en) * | 2007-07-10 | 2009-01-15 | Robert Stewart | Inductively coupled extension antenna for a radio frequency identification reader |
WO2009008861A1 (en) | 2007-07-10 | 2009-01-15 | Allflex Usa, Inc. | Inductively coupled extension antenna for a radio frequency identification reader |
US7764177B2 (en) | 2007-07-10 | 2010-07-27 | Allflex Usa, Inc. | Inductively coupled extension antenna for a radio frequency identification reader |
US20100052869A1 (en) * | 2008-09-04 | 2010-03-04 | Robert Stewart | Combination full-duplex and half-duplex electronic identification tag |
US8581705B2 (en) | 2008-09-04 | 2013-11-12 | Allflex Usa, Inc. | Combination full-duplex and half-duplex electronic identification tag |
US9646239B2 (en) | 2008-09-04 | 2017-05-09 | Allflex Usa, Inc. | Combination full-duplex and half-duplex electronic identification tag |
US20110205026A1 (en) * | 2009-10-09 | 2011-08-25 | Leigh Bateman | Radio frequency identification reader antenna having a dynamically adjustable q-factor |
US20110210823A1 (en) * | 2009-10-09 | 2011-09-01 | Leigh Bateman | Hdx demodulator |
US8493185B2 (en) | 2009-10-09 | 2013-07-23 | Aleis Pty Ltd | Radio frequency identification reader antenna having a dynamically adjustable Q-factor |
US8811542B2 (en) | 2009-10-09 | 2014-08-19 | Aleis Pty Ltd. | HDX demodulator |
Also Published As
Publication number | Publication date |
---|---|
NL18784C (en) | |
FR30305E (en) | 1926-05-07 |
GB256828A (en) | 1926-08-19 |
FR589082A (en) | 1925-05-22 |
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