(Case No. 6907)MODULATING SIGNAL AND CARRIER\nSIGNAL GENERATING CIRCUITABSTRACT OF THE DISCLOSURE\nA low frequency modulating signal and a high frequency\ncarrier signal circuit employing a twin-T oscillator having an\nintegrated circuit operational amplifier for producing the modu-\nlating signal and...
An OFDM signal having a large plurality of data-bearing carriers (80;84) spaced by a predetermined spacing includes a plurality of pilot carriers (82;86). Each pilot carrier is spaced from the nearest data-bearing carrier and the other pilot carriers by not less than a multiple of the pred...
Keying means the modulating signal takes one of a specific number of values at all times. Carrier Signal The satellites continuously broadcast electromagnetic signals in the L-band, which is used for radio communication. Each satellite transmits two sinusoidal carrier signals, L1 and L2, with ...
Spread spectrum signal demodulating method and apparatus.A spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carri... 被引量: 0发表: 0年 Device for demodulating a spread spectrum signal Circuitry for receiving and demodulating a spread spectrum signal integrates...
Click here:point_up_2:to get an answer to your question :writing_hand:a modulating signal is a square wave as shown in
and second types to be applied to the first carrier signal to be the modulation of the first and second types represented by the first modulation point and the modulation of the first and second types to be applied to the second carrier signal to be the modulation of the first and second ...
continuous analog signal.See alsoamplitude,amplitude modulation,analog signal,carrier,constant,continuous emission,continuous wave,frequency modulation,international Morse code,modulate,modulating signal,modulation,optical signal,output,phase modulation,pulse,pulse-code modulation,radio wave,signal,transmission,...
signal and reproducing the data signal comprises an arrangement (see Fig. 1A) in which the carrier wave is defined into a plurality of blocks and all the cycles but one at least within each block are subjected to amplitude modulation, and a demodulator (see Fig. 2A) for reproducing the ...
Method and device for multiplexing and transmitting a digital audiovisual signal and an additional data signal and method and device for receiving and demultiplexing the digital audiovisual signal and the additional data signal and metho... A data transmission device transmits a data broadcast using ...
An amplitude modulated transmitting and receiving system comprising in combination means for clamping a relatively low frequency modulating signal to a given reference level, so the clamped signal doe