ES431949A3 - Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding) - Google Patents

Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES431949A3
ES431949A3 ES431949A ES431949A ES431949A3 ES 431949 A3 ES431949 A3 ES 431949A3 ES 431949 A ES431949 A ES 431949A ES 431949 A ES431949 A ES 431949A ES 431949 A3 ES431949 A3 ES 431949A3
Authority
ES
Spain
Prior art keywords
tones
representative
tonalities
chosen
tonality
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
Application number
ES431949A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to ES431949A priority Critical patent/ES431949A3/en
Publication of ES431949A3 publication Critical patent/ES431949A3/en
Expired legal-status Critical Current

Links

Landscapes

  • Machine Translation (AREA)

Abstract

Sequential signaling system by tones that includes in combination: means for generating a predetermined group of tones representative of a plurality of information digits; means for generating a separation key different from the representative tones of the information digits; means for transmitting the tones generated by said generating device; control means connected to said generating means and said transmission device and cooperating therewith to cause said transmission means to sequentially transmit an initial tonality chosen from among the group of representative tones of information digits, a first plurality of representative tones of a predetermined message chosen in the group of tonalities representative of the information digits, characterized in that each tonality is also chosen so that it is different from the tonalities that precede it and immediately follow it, that is, which constitutes the tonality of separation, and a second plurality of tones chosen from the group of tonalities representative of information digits, so that each tonality is also chosen so as to be different from the tone that immediately precedes it. (Machine-translation by Google Translate, not legally binding)
ES431949A 1974-11-14 1974-11-14 Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding) Expired ES431949A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES431949A ES431949A3 (en) 1974-11-14 1974-11-14 Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES431949A ES431949A3 (en) 1974-11-14 1974-11-14 Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES431949A3 true ES431949A3 (en) 1977-03-16

Family

ID=8467978

Family Applications (1)

Application Number Title Priority Date Filing Date
ES431949A Expired ES431949A3 (en) 1974-11-14 1974-11-14 Sequality signaling system for tonalities. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES431949A3 (en)

Similar Documents

Publication Publication Date Title
ES427136A1 (en) Method and apparatus for the secret transmission of speech signals
KR850003098A (en) Interface channel unit
GB1337963A (en) Credit card verifier
JPS53140908A (en) First ringing control system in time sharing exchanger
ES331322A1 (en) A terminal device for mechanographing and transmiting code signals of at least some mechanographed messages. (Machine-translation by Google Translate, not legally binding)
ES432662A1 (en) Telephone data set
JPS5762650A (en) Dial device for telephone
SU507947A1 (en) Control Channel Peripheral Device
JPS52101A (en) System for transmitting acoustic sigal
JPS56153876A (en) Tone transmission system
AU489548B2 (en) Narrow bandwidth, compatible single sideband (cssb) transmission system and three tone generator used therein
FR2408951A1 (en) DEVICE FOR THE TRANSMISSION OF STOCHASTIC INFORMATION
JPS53131715A (en) Circuit selection system
JPS54124608A (en) Key telephone control system
SU498745A1 (en) Device forming service telegraph combinations
JPS53132911A (en) Telephone set
JPS52101919A (en) Data transmission system
JPS5440506A (en) First ringing control system for time-division exchange
JPS5235907A (en) High sound simultaneous communication unit
JPS5338912A (en) Sending/stop system for signal sound
JPS5268303A (en) Digital data transmitter
JPS5228812A (en) Data communication system
JPS5395507A (en) Transfer information system
JPS56161762A (en) Facsimile device of tonal signal system
JPS5279705A (en) Privacy circuit in key telephone unit