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.)
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.)
Constr Telephoniques
Original Assignee
Constr Telephoniques
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 Constr TelephoniquesfiledCriticalConstr Telephoniques
Priority to FR7902027ApriorityCriticalpatent/FR2447647A1/fr
Priority to BR8000494Aprioritypatent/BR8000494A/pt
Publication of FR2447647A1publicationCriticalpatent/FR2447647A1/fr
Application grantedgrantedCritical
Publication of FR2447647B3publicationCriticalpatent/FR2447647B3/fr
G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
G06F1/02—Digital function generators
G06F1/03—Digital function generators working, at least partly, by table look-up
G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/30—Devices which can set up and transmit only one digit at a time
H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form
Landscapes
Engineering & Computer Science
(AREA)
Theoretical Computer Science
(AREA)
Signal Processing
(AREA)
Physics & Mathematics
(AREA)
General Engineering & Computer Science
(AREA)
General Physics & Mathematics
(AREA)
Transmitters
(AREA)
FR7902027A1979-01-261979-01-26Generateur de frequences
GrantedFR2447647A1
(fr)
