Correction of transmission variations in television standards converting system

• US 3,097,260 A
• Filed: 11/08/1956
• Issued: 07/09/1963
• Est. Priority Date: 11/12/1955
• Status: Expired due to Term

• Current Assignee: Penfound James Ivanhoe John
• Original Assignee: Penfound James Ivanhoe John
• Inventors: PENFOUND JAMES IVANHOE JOHN
• Application Number:
  US03/621,103
• Time in Patent Office: 2,434 Days
• US Class Current: 348/455
• CPC Class Codes: H04N 11/22 in which simultaneous signals are converted into sequential signals or vice versa
• CPC Class Codes: H04N 7/0107 using beam gun storage

Claims

1. A TELEVISION SIGNAL TRANSMISSION SYSTEM COMPRISING CONVERTING MEANS FOR CONVERTING APPLIED TELEVISION SIGNALS HAVING ONE SCANNING STANDARD INTO TELEVISION SIGNALS HAVING ANOTHER SCANNING STANDARD, MEANS FOR APPLYING TELEVISION SIGNALS TO SAID CONVERTING MEANS DURING SPACED INTERVALS TO DERIVE CORRESPONDING CONVERTED SIGNALS, MEANS FOR APPLYING A REFERENCE SIGNAL TO SAID CONVERTING MEANS DURING INTERVENING INTERVALS TO DERIVE A CORRESPONDING SIGNAL CONSTITUTING A CORRECTING SIGNAL, STORAGE MEANS FOR SAID CORRECTING SIGNAL, AND MEANS RESPONSIVE TO A CORRECT ING SIGNAL DERIVED FROM SAID STORAGE MEANS DURING SAID FIRST MENTIONED INTERVALS TO REDUCE THE EFFECT OF TRANSMISSION VARIATIONS OF SAID CONVERTING MEANS ON TELEVISION SIGNALS DERIVED THEREFROM.