DE655885C -
Method for transmitting two messages with which two auxiliary frequencies are modulated, which in turn modulate the carrier frequency of a transmitter
- Google Patents
Method for transmitting two messages with which two auxiliary frequencies are modulated, which in turn modulate the carrier frequency of a transmitter
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.)
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Telefunken AG
Original Assignee
Telefunken AG
Publication date
Priority to DET45407DpriorityCriticalpatent/DE655885C/en
Application grantedgrantedCritical
Publication of DE655885CpublicationCriticalpatent/DE655885C/en
Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves
(AREA)
Description
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
BEKLIN. GEDRUCKT IN DER REICHSDRUCKEBEtBEKLIN. PRINTED IN THE REICHSDRUCKEBEt
Claims (1)
Patentanspruch:Claim:Verfahren zur Übermittlung zweier ■Nachrichten, mit denen zwei Hilfsfrequenzen
moduliert sind, die ihrerseits die Trägerfrequenz eines Senders modulieren, dadurch gekennzeichnet, daß die beiden
Hilfsfrequenzen im Verhältnis 1 : 2 oder vorzugsweise 1 : 3 zueinander stehen und
daß deren gegenseitige Phasenlage so gewählt ist, daß der Höchstwert der Summenschwingung
kleiner ist als die Summe der Höchstwerte der Einzelschwingungen.Method for the transmission of two ■ messages with which two auxiliary frequencies
are modulated, which in turn modulate the carrier frequency of a transmitter, characterized in that the two
Auxiliary frequencies are in a ratio of 1: 2 or preferably 1: 3 to one another and
that their mutual phase position is chosen so that the maximum value of the total oscillation
is smaller than the sum of the maximum values of the individual oscillations.*)■ Von dem Patentsucher ist als der Erfinder angegeben worden:*) ■ The patent seeker stated as the inventor:Dr. Wilhelm Runge in Berlin.Dr. Wilhelm Runge in Berlin.
DET45407D
Method for transmitting two messages with which two auxiliary frequencies are modulated, which in turn modulate the carrier frequency of a transmitter
ExpiredDE655885C
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