Patent US2651798A successfully refreshed from Google Patents.
Patent US3333052A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3333052A Expired / Lapsed US ⏱️ 0.0 years remaining

Communications encoding and decoding system employing selective attenuation and phase shifting of synchronizing signals and harmonics

Assignee: Individual
•
Filing: 1963-10-18
•
Granted: 1967-07-25
•
Expires: 1983-10-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Leonard R Kahn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 06:21
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/167; H04N7/171

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 114 words
IN A VIDEO SIGNAL WIRELESS TRANSMISSION SYSTEM OF THE TYPE PRESENTING A LINE SCAN TYPE VISUAL IMAGE, A VIDEO SIGNAL ENCODING MEANS COMPRISING: MEANS FOR GENERATING AN UNENCODED VIDEO SIGNAL WITH INCLUDED SYNCHRONIZING PULSES; MEANS SELECTING VARIOUS HARMONIC FREQUENCY COMPONENTS OF THE UNENCODED VIDEO SIGNAL, INCLUDING FREQUENCY COMPONENTS OF A SYNCHRONIZING PULSE THEREOF; MEANS VARIOUSLY SHIFTING THE PHASES OF THE SAID FREQUENCY COMPONENTS; MEANS FOR VARIOUSLY ATTENUATING THE AMPLITUDES OF THE SAID FREQUENCY COMPONENTS; MEANS RECOMBINING THE RESULTING VARIOUSLY PHASE SHIFTED AND ATTENUATED FREQUENCY COMPONENTS WITH THE UNENCODED VIDEO SIGNAL TO PROVIDE AN ENCODED VIDEO SIGNAL; MEANS AMPLITUDE MODULATING A CARRIER WAVE WITH THE ENCODED VIDEO SIGNAL; AND MEANS RADIATING THE MODULATED CARRIER WAVE.
Claim 2
Dependent Claim 114 words
IN A VIDEO SIGNAL WIRELESS TRANSMISSION SYSTEM OF THE TYPE PRESENTING A LINE SCAN TYPE VISUAL IMAGE, A VIDEO SIGNAL ENCODING MEANS COMPRISING: MEANS FOR GENERATING AN UNENCODED VIDEO SIGNAL WITH INCLUDED SYNCHRONIZING PULSES; MEANS SELECTING VARIOUS HARMONIC FREQUENCY COMPONENTS OF THE UNENCODED VIDEO SIGNAL, INCLUDING FREQUENCY COMPONENTS OF A SYNCHRONIZING PULSE THEREOF; MEANS VARIOUSLY SHIFTING THE PHASES OF THE SAID FREQUENCY COMPONENTS; MEANS FOR VARIOUSLY ATTENUATING THE AMPLITUDES OF THE SAID FREQUENCY COMPONENTS; MEANS RECOMBINING THE RESULTING VARIOUSLY PHASE SHIFTED AND ATTENUATED FREQUENCY COMPONENTS WITH THE UNENCODED VIDEO SIGNAL TO PROVIDE AN ENCODED VIDEO SIGNAL; MEANS AMPLITUDE MODULATING A CARRIER WAVE WITH THE ENCODED VIDEO SIGNAL; AND MEANS RADIATING THE MODULATED CARRIER WAVE.

References Cited (Backward Citations)

US1542566A Cited
US1726578A Cited
US2266194A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-24 1971-01-23 1971-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-24 1975-01-23 1975-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-24 1979-01-23 1979-07-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag