No title available

• US 3,258,694 A
• Filed:
• Issued:
• Est. Priority Date: 01/03/1964
• Status: Expired due to Term

• Current Assignee: N/A
• Original Assignee: N/A
• Time in Patent Office: Days
• US Class Current: 455/112
• CPC Class Codes: H03C 3/005 Circuits for asymmetric modulation
• CPC Class Codes: H03C 3/06 Means for changing frequency deviation

Claims

1. IN AN ANGULARLY MODULATED COMMUNICATION SYSTEM WHEREIN OPTIMUM POWER OUTPUT OF THE TRANSMITTED INFORMATION BEARING PORTION OF THE MODULATED WAVE IS ACHIEVED, THE COMBINATION COMPRISING (A) MEANS FOR ANGULARLY MODULATING A CARRIER WAVE WITH INFORMATION BEARING SIGNALS TO PRODUCE AN INFORMATION BEARING MODULATED WAVE HAVING A FREQUENCY SPECTRUM COMPRISING AN UNMODULATED CARRIED COMPONENT AND A PLURALITY OF SIDEBANDS, (B) MEANS FOR TRANSMITTING A SELECTED PORTION OF THE FREQUENCY SPECTRUM OF SAID MODULATED WAVE, SAID SELECTED PORTION INCLUDING AT LEAST OF THE SIDEBANDS BEARING THE DESIRED INFORMATION, (C) MEANS FOR PRODUCING A CONTROL SIGNAL IN RESPONSE TO THE RELATIVE STRENGTH OF A PORTION OF THE FREQUENCY SPECTRUM OF SAID MODULATED WAVE OTHER THAN THE