DE1033263B - Circuit arrangement for receiving one or more signal frequencies with at least one threshold device - Google Patents
Circuit arrangement for receiving one or more signal frequencies with at least one threshold deviceInfo
- Publication number
- DE1033263B DE1033263B DES46866A DES0046866A DE1033263B DE 1033263 B DE1033263 B DE 1033263B DE S46866 A DES46866 A DE S46866A DE S0046866 A DES0046866 A DE S0046866A DE 1033263 B DE1033263 B DE 1033263B
- Authority
- DE
- Germany
- Prior art keywords
- signal
- threshold
- relay
- frequencies
- blocking
- 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.)
- Pending
Links
- 230000000903 blocking effect Effects 0.000 claims description 19
- 230000004044 response Effects 0.000 claims description 17
- 230000035945 sensitivity Effects 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 238000004804 winding Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000035987 intoxication Effects 0.000 claims 1
- 231100000566 intoxication Toxicity 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Noise Elimination (AREA)
Description
Schaltungsanordnungen zum Empfang einer oder mehrerer Signalfrequenzen sind bekanntlich, wenn sie als Tonwahlempfänger Verwendung finden, so aufgebaut, daß sie einerseits Mittel, die beispielsweise aus einem Parallelresonanzkreis und einer Gleichrichteranordnung bestehen, besitzen, die bei Empfang von die Signalfrequenzen enthaltenden Spannungen, ein Signalrelais zum Ansprechen bringen, und andererseits Mittel, die beispielsweise aus einem Serienresonanzkreis und einer Gleichrichteranordnung bestehen, die beim Empfang von. Spannungen anderer als der Signalfrequenzen den Signalempfang sperren. Die Sprachsicherhei.t wird also erreicht, indem die aus dein Signalfrequenzen gewonnene Energie und die aus den die Signalfrequenzen ausschließenden Frequenzen gewonnene Energie, also die Sperrenergie, gegeneinander abgewogen werden und! die hieraus resultierende Energie ein Signalrelais betätigt.Circuit arrangements for receiving one or several signal frequencies are known to be constructed when they are used as tone dialing receivers, that they on the one hand means, for example from a parallel resonant circuit and a rectifier arrangement exist, have the voltages containing the signal frequencies when received Bring signal relays to respond, and on the other hand means, for example from a series resonant circuit and a rectifier arrangement, which when receiving. Tensions of others block signal reception than the signal frequencies. The language security is thus achieved by the The energy obtained from the signal frequencies and the frequencies that exclude the signal frequencies recovered energy, i.e. the barrier energy, must be weighed against each other and! the resulting Energy actuates a signal relay.
Diese bekannten Anordnungen haben den Nachteil, daß von hohen Störgeräuschen, die das Signalrelais noch nicht vollständig blockieren, große Zeichenverzerrungen verursacht werden. Der Grund liegt in der Verringerung der Signalleistung in der Abwägeeinrichtung, die so weit erfolgt, daß die zum verzerrungsfreien Arbeiten notwendige Relaiserregung unterschritten wird, andererseits aber die durch das Störgeräusch hervorgerufene Absenkung der Signalleistung nicht ausreicht, um das. Relais völlig am Ansprechen zu hindern. Es tritt also ein gewisser Übergangsbereich auf, unterhalb dessen, d. h. bei geringem Störgeräusch, ein nahezu verzerrungsfreier Betrieb besteht; in dem Übergangsbereich geht mit zunehmendem Störgeräusch (der Signalpegel bei dabei konstant) der Empfänger von diesem nahezu verzerrungsfreien Betrieb in den Bereich mit wachsender Zeichenverzerrung über, oberhalb dieses Übergangsbereiches, d. h. wenn das Störgeräusch zu groß geworden ist, ist der Empfänger blockiert. Die Grenze zwischen dem verzerrungsfreien Betrieb und dem Betrieb mit relativ großer Zeidhenverzerruog gibt die GeräuschempfindliCbkeit an, während die Grenze zwischen dem Übergangsbereich, und dem Bereich, in dem der Empfänger völlig blockiert ist, die Sprachsicherheit bzw. den Sprachschutzfaktor als Abstand gegenüber dem minimalen Zeichenempfangspegel angibt.These known arrangements have the disadvantage that of high levels of interfering noise, which the signal relay not yet completely blocking, causing large distortion of characters. The reason lies in the Reduction of the signal power in the weighing device, which takes place so far that the relay excitation required for distortion-free work is not reached on the other hand, the reduction in signal power caused by the background noise not sufficient to completely prevent the relay from responding. So there is a certain transition area on, below that, d. H. with little background noise, an almost distortion-free one Operation exists; in the transition area, with increasing background noise (the signal level goes to constant) the receiver of this almost distortion-free operation in the area with growing Character distortion above, above this transition area, i.e. H. if the background noise is too great the recipient is blocked. The boundary between distortion-free operation and operation with a relatively large amount of distortion indicates the sensitivity to noise, while the Boundary between the transition area and the area in which the recipient is completely blocked, the speech security or the speech protection factor as Specifies the distance from the minimum character reception level.
Es ist auch eine Anordnung bekannt, bei der sowohl im Weg der Signalfrequenzspannungen als auch im Weg der Sprachfrequeinzspaninunigen mit Ausnahme der Signalfrequenzen Glimmlampen vorhanden sind, die eine gewisse Ansprechschwelle bewirken. Durch diese Maßnahme wird zwar bei Störungen geringen Energiegehaltes eine Einwirkung auf den Signalempfang vermieden, doch können sich Störungen Schaltungsanordnung zum EmpfangAn arrangement is also known in which both in the path of the signal frequency voltages and in the Path of the voice frequency spins with exception the signal frequencies glow lamps are present that cause a certain response threshold. By This measure will have an effect on the signal reception in the event of disturbances with a low energy content avoided, but interference can occur in the circuit arrangement for reception
einer oder mehrerer Signalfrequenzen mit mindestens einer Schwellwertvorrichtungone or more signal frequencies with at least one threshold device
Anmelder:Applicant:
Siemens & Halske Aktiengesellschaft,Siemens & Halske Aktiengesellschaft,
Berlin und München,
München 2, Wittelsbacherplatz 2Berlin and Munich,
Munich 2, Wittelsbacherplatz 2
Dipl.-Ing. Josef Eder, München,
ist als Erfinder genannt wordenDipl.-Ing. Josef Eder, Munich,
has been named as the inventor
größerer Amplitude, insbesondere bei größerer Empfindlichkeit des Signalempfängers in bezug auf die Signalfrequenzen nachteilig auswirken und Zeidhenverzerrungen hervorrufen.greater amplitude, especially with greater sensitivity of the signal receiver with respect to the Adversely affect signal frequencies and cause line distortion.
Um die oben beschriebenen Nachteile zu vermeiden, ist bei einer Schaltungsanordnung zum Empfang einer oder mehrerer Signalfrequenzen, bei der die in den empfangenen Spannungen vorhandenen Signalfrequenzen z. B. über einen Parallelresonanzkreis und eine Gleichrichteranordnung ein Signalrelais zum Ansprechen bringen, während die übrigen. Frequenzen z. B. über einen Serienresonanzkreis und eine weitere Gleicbrichteranordnung den. Signalempfang sperren, und. bei welcher mindestens eine Schwellwertvorrichtung mit für die Signalfrequenzen und für die übrigen Frequenzen unterschiedlicher Ansprechschwelle vorgesehen ist, erfindungsgemäß das Verhältnis des Ansprechschwellwertes im Signalweg zu dem im Sperrweg umgekehrt proportional dem Verhältnis der Empfindlichkeit des Empfängers für die Signalfrequenzen zu der Empfindlichkeit des Empfängers für die übrigen Frequenzen.In order to avoid the disadvantages described above, in a circuit arrangement for receiving a or several signal frequencies at which the signal frequencies present in the received voltages z. B. a signal relay for response via a parallel resonance circuit and a rectifier arrangement bring while the rest. Frequencies e.g. B. via a series resonance circuit and another Equalizer arrangement the. Block signal reception, and. in which at least one threshold device with different response thresholds provided for the signal frequencies and for the other frequencies is, according to the invention, the ratio of the response threshold value in the signal path to that in the blocking path inversely proportional to the ratio of the sensitivity of the receiver to the signal frequencies the sensitivity of the receiver for the other frequencies.
Durch eine derartige Ausbildung der Ansprechschwellen wird der Vorteil erzielt, daß die bei dien bisher bekannten Signalempfängern durch Störgeräusche großer Amplitude, die das Signalrelais noch nicht vollständig blockieren, entstehenden großen Zeichenverzerrungen vermieden werden.Such a design of the response thresholds has the advantage that the previously used known signal receivers due to large amplitude noise that the signal relay does not yet block completely, resulting in large character distortions can be avoided.
Eine Ausführungsform der Erfindung sieht vor, daß im Signal- und im Sperrweg getrennte, voneinander unabhängige Schwellwertvorrichtungen unterschiedlicher Ansprechschwelle angeordnet sind, während eine andere Ausführungsform der Erfindung vorsieht, daß eine einzige Schwellwertvorrichtung zwi-One embodiment of the invention provides that the signal path and the blocking path are separate from one another independent threshold devices of different response thresholds are arranged while Another embodiment of the invention provides that a single threshold device between
809 559/284809 559/284
Claims (1)
österreichische Patentschrift Nr. 124 552.Considered publications:
Austrian patent specification No. 124 552.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES46866A DE1033263B (en) | 1955-12-27 | 1955-12-27 | Circuit arrangement for receiving one or more signal frequencies with at least one threshold device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES46866A DE1033263B (en) | 1955-12-27 | 1955-12-27 | Circuit arrangement for receiving one or more signal frequencies with at least one threshold device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1033263B true DE1033263B (en) | 1958-07-03 |
Family
ID=7486179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES46866A Pending DE1033263B (en) | 1955-12-27 | 1955-12-27 | Circuit arrangement for receiving one or more signal frequencies with at least one threshold device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1033263B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1162418B (en) * | 1960-11-22 | 1964-02-06 | Standard Elektrik Lorenz Ag | Circuit arrangement to prevent the incorrect evaluation of overvoltages by signal receivers in telecommunications systems |
| DE2643646A1 (en) * | 1975-10-03 | 1977-04-14 | Ericsson Telefon Ab L M | DEVICE FOR DETECTING A SOUND SIGNAL |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT124552B (en) * | 1927-01-04 | 1931-09-25 | Ericsson Telefon Ab L M | Device on electrical call and signal receivers. |
-
1955
- 1955-12-27 DE DES46866A patent/DE1033263B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT124552B (en) * | 1927-01-04 | 1931-09-25 | Ericsson Telefon Ab L M | Device on electrical call and signal receivers. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1162418B (en) * | 1960-11-22 | 1964-02-06 | Standard Elektrik Lorenz Ag | Circuit arrangement to prevent the incorrect evaluation of overvoltages by signal receivers in telecommunications systems |
| DE2643646A1 (en) * | 1975-10-03 | 1977-04-14 | Ericsson Telefon Ab L M | DEVICE FOR DETECTING A SOUND SIGNAL |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1033263B (en) | Circuit arrangement for receiving one or more signal frequencies with at least one threshold device | |
| DE745228C (en) | Electrical signal receiver | |
| DE672795C (en) | Signal transmission system with two transmission paths in which blocking devices controlled by the signal streams are switched on | |
| DE673988C (en) | Multi-circuit receiver with automatic shrinkage control | |
| DE1024573B (en) | Receiver for tone-frequency call and dial signals with speech protection and delay capacitor | |
| DE1124999B (en) | Pulse amplifier with time stamp control | |
| DE903824C (en) | Electrical signal receivers, in particular audio frequency signal receivers | |
| DE869359C (en) | Circuit for receiving electrical impulses of constant height | |
| DE738407C (en) | Arrangement to suppress the sidebands from modulated carrier flows | |
| AT237050B (en) | Audio frequency signal receiver | |
| DE1001708B (en) | Audio frequency signal receivers for wide area systems in which audio frequency signals are transmitted for calling and dialing purposes | |
| DE956774C (en) | Arrangement for suppressing the interference level in tone call receivers with amplitude-dependent negative feedback | |
| DE499338C (en) | Two-wire or four-wire connection with amplifier core | |
| DE1280349B (en) | Receiver with automatic regulation to an approximately constant output voltage | |
| DE976373C (en) | Circuit arrangement for eliminating impulse interference in high-frequency receivers | |
| AT249759B (en) | AC signal receivers for telecommunications, in particular telephone systems | |
| DE962983C (en) | Circuit arrangement for receiving voltages of one or more signal frequencies, at which the signal voltages are rectified and differentiated | |
| DE2938346A1 (en) | POWER SUPPLY | |
| DE931663C (en) | Circuit for achieving a distortion-free reproduction of the telegraphic pulses | |
| DE537858C (en) | Four-wire line | |
| DE953180C (en) | Tube circuit for the common amplification of a usable frequency band and a signal frequency as well as for the simultaneous control of a relay by the signal frequency | |
| AT151464B (en) | Interference suppression circuit for radio receivers. | |
| DE738933C (en) | Switching arrangement for suppressing interference in radio receivers | |
| AT156942B (en) | Radio receiving circuit with means for suppressing aperiodic disturbances occurring during reception. | |
| DE1180427B (en) | Frequency modulation receiver with compression of the frequency deviation |