US3914535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver for a still picture broadcasting signal
Assignee: Hitachi Ltd
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Filing: 1973-08-30
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Granted: 1975-10-21
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Expires: 1993-08-30
Abstract
Abstract A receiver for receiving a composite signal including a first information signal, such as for instance, a number of video signals representing a number of still pictures, second information signal, such as for instance, pulse code modulated time division multiplex mutli-channel audio signals, control signal including information for processing above mentioned two signals in the receiver, and necessary synchronizing signals required for the reproduction of the above mentioned three signals being transmitted sequentially in a predetermined sequence, wherein during transmission period of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for continuously reproducing said second information signal which has been selected. The receiver comprises a means for selecting said control signal, a means for producing a signal for identifying real or memory of said second information signal by using the above mentioned selected control signal and for designating the same, a means for gating the real signal and the memory signal, a memory means for memorizing the memory signal, a means for supplying output signal of the designating means to said gate means, a means for storing the memory signal gated out by the gate means in the memory means and for reproducing the real signal immediately, and a means for reproducing the stored memory signal after delaying the same so as to form a continuous reproduced signal succeeding to the directly reproduced real signal.
Inventors
- 👤 Teruhiro Takezawa
- 👤 Michio Masuda
- 👤 Hiroaki Nabeyama
- 👤 Katsuo Mohri
- 👤 Masaaki Fukuda
- 👤 Tatsuo Kayano
- 👤 Takashi Uehara
- 👤 Eiichi Sawabe
- 👤 Takehiko Yoshino
- 👤 Hisakichi Yamane
- 👤 Akio Yanagimachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00095; H04N1/00098
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
211 words
A receiver for receiving a composite signal including a first information signal, a second information signal and a control signal having information for processing above said two signals in the receiver being transmitted sequentially in a predetermined sequence, wherein during transmission period of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals, and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for reproducing said second information signal, the receiver comprises; a means for generating a signal for identifying real or memory of said signal and for selectively deriving the same, a gate means to be controlled by an output signal of said signal generating means, a means for memorizing selectively gated out memory signal by said gate means, a means for directly reproducing said selectively gated out real signal gated by the gate means simultaneously with the reception, and a means for reading out said memory signal stored in the memory means during the period in which the second information signal is not transmitted and for reproducing the memory signal to form a continuous signal together with said reproduced real signal.
Claim 2
Dependent Claim
211 words
A receiver for receiving a composite signal including a first information signal, a second information signal and a control signal having information for processing above said two signals in the receiver being transmitted sequentially in a predetermined sequence, wherein during transmission period of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals, and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for reproducing said second information signal, the receiver comprises; a means for generating a signal for identifying real or memory of said signal and for selectively deriving the same, a gate means to be controlled by an output signal of said signal generating means, a means for memorizing selectively gated out memory signal by said gate means, a means for directly reproducing said selectively gated out real signal gated by the gate means simultaneously with the reception, and a means for reading out said memory signal stored in the memory means during the period in which the second information signal is not transmitted and for reproducing the memory signal to form a continuous signal together with said reproduced real signal.
Claim 3
Dependent Claim
237 words
A receiver for receiving a composite signal including a first information signal, a second information signal and a control signal having information for processing above said two signals in the receiver being transmitted sequentially in a predetermined sequence, wherein during transmission perioD of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals, and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for reproducing said second information signal, the receiver comprises; a means for selecting said control signal, a means for deriving said second information signal by using the selected control signal by the selecting means, a means for identifying real or memory signal of the derived out second information signal, a gate means for selectively switching the real signal and the memory signal of the derived out second information signal by using an output signal of said identifying means, a means for memorizing the memory signal selected by said gate means, a means for immediately reproducing the switched real signal by said gate means, and a means for reading out the memory signal stored in the memory means during the period in which the second information signal is not transmitted and for reproducing the memory signal to form a continuous signal together with said reproduced real signal.
Claim 4
Dependent Claim
237 words
A receiver for receiving a composite signal including a first information signal, a second information signal and a control signal having information for processing above said two signals in the receiver being transmitted sequentially in a predetermined sequence, wherein during transmission perioD of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals, and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for reproducing said second information signal, the receiver comprises; a means for selecting said control signal, a means for deriving said second information signal by using the selected control signal by the selecting means, a means for identifying real or memory signal of the derived out second information signal, a gate means for selectively switching the real signal and the memory signal of the derived out second information signal by using an output signal of said identifying means, a means for memorizing the memory signal selected by said gate means, a means for immediately reproducing the switched real signal by said gate means, and a means for reading out the memory signal stored in the memory means during the period in which the second information signal is not transmitted and for reproducing the memory signal to form a continuous signal together with said reproduced real signal.
Claim 5
Dependent Claim
251 words
A receiver for reproducing audio signal from a composite signal comprising a video signal, a time division multiplex audio signal, a control signal including information for processing said two signals in the receiver, and synchronizing signals required for reproducing said signals, being transmitted in a predetermined time interval and in a predetermined sequence, during the transmission period of the audio signal the audio signal to be reproduced in the same period said audio signal is transmitted as a real signal, and the audio signal to be reproduced during a period in which the audio signal is not transmitted is transmitted as memory signal and transmitted together with the real signal in the composite signal, the receiver comprises; a means for selecting said control signal, a means for deriving out said audio signal by using the selected control signal by the selecting means, a means for identifying real or memory of the derived out audio signal by said means, a gate means for selectively switching the memory signal and the real signal in the derived out audio signal by using an output signal of said identifying means, a means for memorizing said selected memory signal selected by the gate means, a means for immediately reproducing the selected real signal selected by the gate means, and a means for reading out the memorized memory signal in the memory means during the period in which the audio signal is not transmitted and reproducing the read out memory signal in continuous with the real signal.
Claim 6
Dependent Claim
251 words
A receiver for reproducing audio signal from a composite signal comprising a video signal, a time division multiplex audio signal, a control signal including information for processing said two signals in the receiver, and synchronizing signals required for reproducing said signals, being transmitted in a predetermined time interval and in a predetermined sequence, during the transmission period of the audio signal the audio signal to be reproduced in the same period said audio signal is transmitted as a real signal, and the audio signal to be reproduced during a period in which the audio signal is not transmitted is transmitted as memory signal and transmitted together with the real signal in the composite signal, the receiver comprises; a means for selecting said control signal, a means for deriving out said audio signal by using the selected control signal by the selecting means, a means for identifying real or memory of the derived out audio signal by said means, a gate means for selectively switching the memory signal and the real signal in the derived out audio signal by using an output signal of said identifying means, a means for memorizing said selected memory signal selected by the gate means, a means for immediately reproducing the selected real signal selected by the gate means, and a means for reading out the memorized memory signal in the memory means during the period in which the audio signal is not transmitted and reproducing the read out memory signal in continuous with the real signal.
Claim 7
Dependent Claim
292 words
A receiver for reproducing audio signal from a composite signal comprising a video signal, a time division multiplex audio signal, a control signal including information for processing said two signals in the receiver, and synchronizing signals required for reproducing said signals, being transmitted in a predetermined time interval and in a predetermined sequence, during the transmission period of the audio signal the audio signal to be reproduced in the same period said audio signal is transmitted as a real signal, and the audio signal to be reproduced during a period in which the audio signal is not transmitted is transmitted as memory signal and transmitted together with the real signal in the composite signal, the receiver comprises; a means for selecting said control signal, a means for designating an audio channel to be reproduced by using the control signal selected by the selecting means among the number of multiplex audio signals, a means for deriving out audio signal in the designated channel by said channel designating means, a means for identifying real or memory of the audio signal by using an output signal of the channel designating means, a gate means for selectively switching the real signal and the memroy signal out of the derived out audio signal derived out by said deriving means by using an output signal of the identifying means, a means for memorizing the memory signal gated out by said gating means, a means for immediately reproducing the real signal gated out by said gating means, and a means for reading out the memory signal memorized in the memory means during a period in which the audio signal is not transmitted and for reproducing said memory signal to form a continuous signal together with the reproduced real signal.
Claim 8
Dependent Claim
292 words
A receiver for reproducing audio signal from a composite signal comprising a video signal, a time division multiplex audio signal, a control signal including information for processing said two signals in the receiver, and synchronizing signals required for reproducing said signals, being transmitted in a predetermined time interval and in a predetermined sequence, during the transmission period of the audio signal the audio signal to be reproduced in the same period said audio signal is transmitted as a real signal, and the audio signal to be reproduced during a period in which the audio signal is not transmitted is transmitted as memory signal and transmitted together with the real signal in the composite signal, the receiver comprises; a means for selecting said control signal, a means for designating an audio channel to be reproduced by using the control signal selected by the selecting means among the number of multiplex audio signals, a means for deriving out audio signal in the designated channel by said channel designating means, a means for identifying real or memory of the audio signal by using an output signal of the channel designating means, a gate means for selectively switching the real signal and the memroy signal out of the derived out audio signal derived out by said deriving means by using an output signal of the identifying means, a means for memorizing the memory signal gated out by said gating means, a means for immediately reproducing the real signal gated out by said gating means, and a means for reading out the memory signal memorized in the memory means during a period in which the audio signal is not transmitted and for reproducing said memory signal to form a continuous signal together with the reproduced real signal.
Claim 9
Dependent Claim
116 words
A receiver as claimed in claim 4, wherein the designating means for designating an audio channel to be reproduced comprises; a means for representing channel number of the audio channel to be reproduced by (n+l) bit binary digit of 20-2n, a means for designating said audio channel number to be reproduced and expressed by binary digits by converting each digit to be a digit decreased by 1 bit such as digit 2n is to be made as 2n 1, and a means for making odd-even check of said channel number expressed by the binary digit before said conversion and by using an identification for 0 or 1 of the least significant digit of the channel number.
References Cited (Backward Citations)
US3493674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |