Data receiver for communication system

    公开(公告)号:US10897264B2

    公开(公告)日:2021-01-19

    申请号:US16450179

    申请日:2019-06-24

    发明人: Keith A. Blanks

    IPC分类号: H03M1/12 H03M1/46 H03M1/78

    摘要: An analog signal processing module includes a processor and a comparator circuit module having a comparator circuit input and a comparator circuit output, the comparator circuit module being configured to receive a first analog signal at the comparator circuit input and generate a digital output, wherein the comparator circuit output is connected to the processor. A digital-to-analog converter (DAC) module is configured to receive a digital output from the processor and convert the digital output to a second analog signal. An operational amplifier (OpAmp) circuit module has an OpAmp circuit input and an OpAmp circuit output, the OpAmp circuit module being configured to receive the second analog signal at the OpAMp circuit input. A feedback loop is formed by the processor, the DAC module, and the OpAMp circuit module, and is configured to implement an amplification function or attenuation function performed by the OpAmp circuit module.

    M-ary frequency presence modulation communication system and method

    公开(公告)号:US10353194B2

    公开(公告)日:2019-07-16

    申请号:US15394033

    申请日:2016-12-29

    发明人: Keith A. Blanks

    摘要: An optical communication system having a data transmitter which includes: at least one optical emission device to output light energy as an optical beam having an operating bandwidth; a beam dividing device to receive and divide the operating bandwidth into plural communication bands; a frequency presence modulation unit to: spectrally segregate the bandwidth of at least one communication band into plural channels, and modulate the bandwidth to selectively produce an optical output signal with wavelengths that correspond to one or more of the channels, wherein presence and absence of energy within channels constitute an information packet for data communication; a controller for providing a control signal to the frequency presence modulation unit to spectrally segregate the bandwidth of the at least one communication band into the plural channels; and a telescope to transmit the optical output signal.

    M-ARY frequency presence modulation communication system and method

    公开(公告)号:US10050715B1

    公开(公告)日:2018-08-14

    申请号:US15845379

    申请日:2017-12-18

    摘要: An optical communication system includes a data transmitter. The data transmitter includes at least one optical emission device to output light energy as an optical beam having an operating bandwidth; a beam dividing device arranged to divide the operating bandwidth of the optical beam into bandwidth portions of plural communication bands; an array of graphene switches to: spectrally segregate a bandwidth portion of at least one communication band into plural channels by adjusting at least one graphene switch, and modulate the bandwidth portion to selectively produce an optical output signal with wavelengths that correspond to one or more of the channels, wherein a presence and absence of energy within channels of the communication band will constitute an information packet for data communication. The system includes a focusing grating to receive and focus a first set of wavelengths of the optical output signal reflected by the array of graphene switches.

    M-ary frequency presence modulation communication system and method for deep space

    公开(公告)号:US10341019B1

    公开(公告)日:2019-07-02

    申请号:US16019510

    申请日:2018-06-26

    发明人: Keith A. Blanks

    摘要: An optical communication system that includes a data transmitter which includes: at least one ultraviolet laser source configured to output ultraviolet light energy as an optical beam having an operating bandwidth with at least one communication band; a frequency presence modulation unit including at least one optical component having an ultraviolet coating, the frequency presence modulation unit being configured to: spectrally segregate the bandwidth of the at least one communication band into plural channels, and modulate the bandwidth to selectively produce an ultraviolet optical output signal with wavelengths that correspond to one or more of the channels, wherein a presence and absence of energy within channels of the communication band will constitute an information packet for data communication; and a controller for providing a control signal to the frequency presence modulation unit to spectrally segregate the bandwidth of the at least one communication band into the plural channels.

    M-ARY frequency presence modulation communication system and method

    公开(公告)号:US10256916B2

    公开(公告)日:2019-04-09

    申请号:US15476311

    申请日:2017-03-31

    发明人: Keith A. Blanks

    摘要: An apparatus for transmitting and receiving encoded optical signals having a data transmitter including: an optical emission device to output light energy as an optical beam having an operating bandwidth; a beam dividing device to receive and divide the operating bandwidth into plural communication bands; a frequency presence modulation unit to: spectrally segregate the bandwidth of at least one communication band into plural channels, and modulate the bandwidth to selectively produce an optical output signal with wavelengths that correspond to one or more of the channels, wherein presence and absence of energy within channels constitute an information packet for data communication; an optical pathway for bi-directional optical communication over a common optical path for transmitting the optical output signal and for receiving an optical input signal; and a data receiver to receive the optical output signal from the optical pathway.

    M-ARY frequency presence modulation communication system and method

    公开(公告)号:US10142030B1

    公开(公告)日:2018-11-27

    申请号:US15835086

    申请日:2017-12-07

    摘要: An optical communication system that includes a data transmitter. The data transmitter includes at least one optical emission device configured to output light energy as an optical beam having an operating bandwidth; a beam dividing device arranged to receive and divide the operating bandwidth of the optical beam into bandwidth portions of plural communication bands; a focusing grating; and a digital mirror array having a plurality of digital mirrors. In an imaging mode, the optical communication system is configured to perform hyperspectral imaging by setting all of the plurality of digital mirrors to positions that transmit all wavelengths of a communication band among the plural communication bands to the focusing grating.

    M-ARY FREQUENCY PRESENCE MODULATION COMMUNICATION SYSTEM AND METHOD

    公开(公告)号:US20180191445A1

    公开(公告)日:2018-07-05

    申请号:US15394033

    申请日:2016-12-29

    发明人: Keith A. Blanks

    摘要: An optical communication system having a data transmitter which includes: at least one optical emission device to output light energy as an optical beam having an operating bandwidth; a beam dividing device to receive and divide the operating bandwidth into plural communication bands; a frequency presence modulation unit to: spectrally segregate the bandwidth of at least one communication band into plural channels, and modulate the bandwidth to selectively produce an optical output signal with wavelengths that correspond to one or more of the channels, wherein presence and absence of energy within channels constitute an information packet for data communication; a controller for providing a control signal to the frequency presence modulation unit to spectrally segregate the bandwidth of the at least one communication band into the plural channels; and a telescope to transmit the optical output signal.