초록 ▼

A data transmission and/or acquisition device and method are disclosed. The said device and method use two cross polarizations of an electromagnetic wave and a magnetic recording device. The invention pertains to phase/amplitude modulation using two phase-modulated signals transmitted on two orthogo

A data transmission and/or acquisition device and method are disclosed. The said device and method use two cross polarizations of an electromagnetic wave and a magnetic recording device. The invention pertains to phase/amplitude modulation using two phase-modulated signals transmitted on two orthogonal polarizations. At reception, the vector sum of the two signals is added taken. The resultant signal is amplitude-modulated and/or phase-modulated. The invention can be applied especially to television and radio transmitters, radars and telecommunications equipment.

대표청구항 ▼

A device for the transmission of information modulated waves comprising: a first transmitter connected to a first transmission aerial having a first polarization; a second transmitter connected to a second aerial having a second polarization which is orthogonal to the first polarization; and a data-

A device for the transmission of information modulated waves comprising: a first transmitter connected to a first transmission aerial having a first polarization; a second transmitter connected to a second aerial having a second polarization which is orthogonal to the first polarization; and a data-processing means for determining phase angle modulation values for each of said first and second transmitters and for producing corresponding first and second modulation signals applied to respective of said first and second transmitters, said first and second transmitters in response to said first and second modulation signals independently modulating a source signal to produce respective first and second phase modulated signals, each defined by respective vectors having respective amplitude and phase components in correspondence to the determined phase angle modulation values, said phase angle modulation values being determined to enable reception, when the first and second phase modulated signals are received by a pair of aerials respectively having said first and second polarizations and the phase modulated signals so received are vector summed, of an amplitude and phase modulated data signal having a predetermined composite vector corresponding to said information.