Method and circuit for the transmitting, recording, and/or reproducing of wide-band signals

Claim 3

A method according to claim 1, wherein the step of demodulating the frequency modulated signal takes place after recombination of the individual recompressed signal segments.

Claim 4

A method according to claim 2, further comprising the steps of filtering the color information out of a complete color television signal; modulating an auxiliary carrier with the color information; converting the modulated signal to a lower frequency band selected for being largely free of sidebands of said frequency modulated carrier signal; and adding the color information signal, as converted to said lower frequency, in carrier-based form to the remaining frequency modulated carrier signal after modulation but prior to said signal-subdividing step.

Claim 5

A method according to claim 3, comprising the further steps of filtering out the converted color signal from the recombined signal before demodulation, reconverting it to its original frequency, and additively superimposing it onto the demodulated composite television signal.

Claim 6

System for transmitting or storing composite television signals in a plurality of narrow-band channels, each containing signal segments respectively carrying different information, comprising means (10) for receiving said signals; frequency modulating means (11) connected to said receiving means for frequency modulating receiving continuous broadband signals to obtain a frequency modulated carrier signal; sequencing switch means (12.1, 12.2 . . . 12.n) connected to said modulator means and sequentially energized, and having output connections to respective ones of said channels for switching multicycle continuous segments of said frequency modulation carrier signal respectively corresponding to different television lines, sequentially to said channels in turn by switch operations occurring in the intervals between television lines; individual time expansion stages (13.1, 13.2 . . . 13.n) in said channels and selectively, sequentially connected by said sequencing switch means (12.1, 12.2 . . . 12.n) for, sequentially, receiving said frequency modulated carrier signal elements, and time-expanding said signal segments; and transmission or storage means (14.1, 14.2 . . . 14.n) connected to respective time expansion stages for receiving said time expanded signal segments and transmitting or storing said time expanded signal segments in respective transmission or storage channels.

Claim 7

System for transmitting or storing composite television signals in a plurality of narrow-band channels, each containing signal segments respectively carrying different information, comprising means (10) for receiving said signals; frequency modulating means (11) connected to said receiving means for frequency modulating receiving continuous broadband signals to obtain a frequency modulated carrier signal; sequencing switch means (12.1, 12.2 . . . 12.n) connected to said modulator means and sequentially energized, and having output connections to respective ones of said channels for switching multicycle continuous segments of said frequency modulation carrier signal respectively corresponding to different television lines, sequentially to said channels in turn by switch operations occurring in the intervals between television lines; individual time expansion stages (13.1, 13.2 . . . 13.n) in said channels and selectively, sequentially connected by said sequencing switch means (12.1, 12.2 . . . 12.n) for, sequentially, receiving said frequency modulated carrier signal elements, and time-expanding said signal segments; and transmission or storage means (14.1, 14.2 . . . 14.n) connected to respective time expansion stages for receiving said time expanded signal segments and transmitting or storing said time expanded signal segments in respective transmission or storage channels.

Claim 8

A circuit according to claim 5, wherein the signal is a color television signal and further comprising a filter and converter (18) for separating and shifting the chrominance component of the color television signal into another frequency region selected for being largely free of sidebands of said frequency modulated carrier signal, and a first summing stage (19) for superimposing the shifted color signal onto the remaining FM-modulated signal at the output of the frequency modulating means (11).

Claim 9

System according to claim 5, further including a plurality of time compression stages (15.1, 15.2 . . . 15.n), one each associated with a channel, for receiving said transmitted or stored signal segments and time compressing said signal segments; sequencing switch means (16.1, 16.2 . . . 16.n) connected for receiving said recompressed signal segments from said time compression stages and reordering into their original sequence the individual signal segments from said plurality of channels to which said sequencing switches are connected; and a demodulator (17) connected to said receiving sequencing switches for demodulating the sequenced signal segments to obtain a reconstituted broad-band signal.

Claim 10

A circuit according to claim 7, wherein the signal is a color television signal and further comprising a filter and a converter (18) for separating and shifting the chrominance component of the color television signal into another frequency region selected for being largely free of sidebands of said frequency modulated carrier signal, and a first summing stage (19) for superimposing the shifted color signal onto the remaining frequency modulated signal at the output of the frequency modulating means (11); and further comprising a reconverter (20) for separating deriving and transforming the chrominance signal component into its original frequency band, and a second summing stage (21) for superimposing the chrominance information component, furnished by the output of said reconverter, onto the demodulated video signal obtained at the output of the demodulator (17).