公开(公告)号：EP2771989A1

公开(公告)日：2014-09-03

申请号：EP12859762.2

申请日：2012-12-19

Applicant: Comtech EF Data Corp.

Inventor： DAVIS, Wallace ,  RHODES, Valentine J. ,  BEELER, Michael

IPC: H04J4/00 ,  H04W52/42

CPC classification number: H04B10/1129 ,  H04B1/74 ,  H04B7/18582 ,  H04B10/118 ,  H04L1/0003 ,  H04L1/0015 ,  Y02D50/10

Abstract: A method of hitless switching over a communications link, the method comprising transmitting, by a first modulator to a remote receiver, a first carrier signal having a first center frequency, enabling, by a second modulator to the remote receiver, transmission of a second carrier signal having a second center frequency while the first modulator is transmitting the first carrier signal, increasing, through the second modulator, a power level of the second carrier signal while the first carrier signal is transmitting, simultaneously decreasing, through the first modulator, a power level of the first carrier signal while the power level of the second carrier signal is increasing, and disabling transmission of the first carrier signal to the remote receiver when the power level of the second carrier signal reaches a predetermined level.

公开(公告)号：EP2673932A2

公开(公告)日：2013-12-18

申请号：EP12744347.1

申请日：2012-02-06

Applicant: Comtech EF Data Corp.

Inventor： BEELER, Michael ,  MORRIS, Frederick ,  HARIG, Jeffrey ,  MAMARIL, Cris

IPC: H04L27/34 ,  H04B1/69

CPC classification number: H04L27/3488 ,  H04B1/707

Abstract: A communication method for embedding a meta-carrier under an original carrier signal with reduced or minimal original carrier signal degradation, the method comprising transmitting an original carrier signal and transmitting a meta-carrier signal separate from the original carrier signal, wherein the meta-carrier signal contains information about an original carrier signal, is extractable under an interfered condition, and is transmitted such that the meta-carrier signal occupies at least a portion of a bandwidth of the original carrier signal.

公开(公告)号：EP2959611A1

公开(公告)日：2015-12-30

申请号：EP14882246.3

申请日：2014-12-01

Applicant: Comtech EF Data Corp.

Inventor： BEELER, Michael ,  DAVIS, Wallace ,  REMILLONG, Randall ,  MCCOLLUM, Jason

IPC: H04B7/185 ,  H04W36/02

CPC classification number: H04H20/12 ,  H04B7/18517 ,  H04H20/74 ,  H04L5/0016 ,  H04L5/0092

Abstract: A method of providing a recovery channel for a common transmission network of remote devices comprising encoding data that contains information about a primary carrier signal, modulating the encoded information, spreading, the modulated encoded information such that a secondary carrier signal results, combining, the spread secondary carrier with the primary carrier signal such that the spread secondary carrier signal occupies at least a portion of a bandwidth of the bandwidth pool, transmitting the combined primary and secondary carrier signals across a communications link having a plurality of remote carrier signals also being transmitted across the communications link to a remote receiver and sharing a same bandwidth pool (or multiple bandwidth pools), and reestablishing the communications link with the primary carrier signal after a loss of the communications link using the information about the primary carrier signal contained in the secondary carrier signal to recover one or more network configuration parameters.

公开(公告)号：EP2772030A1

公开(公告)日：2014-09-03

申请号：EP12843380.2

申请日：2012-10-25

Applicant: Comtech EF Data Corp.

Inventor： MANEA, Vasile ,  BEELER, Michael ,  MORRIS, Frederick ,  HARIG, Jeffery

IPC: H04L12/829

CPC classification number: H04W76/02 ,  H04B7/18515 ,  H04B7/18582 ,  H04L1/0003 ,  H04L1/0009 ,  H04W28/18 ,  H04W48/16 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/10 ,  H04W84/06

Abstract: A method of provisioning a communications link between remote terminals within a hub-spoke network comprising receiving, by a first remote terminal, information about a second remote terminal from a hub, selecting, by the first remote terminal, a modulation factor, coding rate, symbol rate, center frequency, and power level based on the information received about the second remote terminal, transmitting, by the first remote terminal, a signal using at least one of the selected modulation factor, coding rate, symbol rate, center frequency, and power level, to the second remote terminal such that a communications link is created, and adjusting the modulation factor, coding rate, symbol rate, center frequency, or power level of the transmitted signal such that performance of the link is increased while maintaining a presence of the link.

公开(公告)号：EP2767015A1

公开(公告)日：2014-08-20

申请号：EP12839390.7

申请日：2012-10-10

Applicant: Comtech EF Data Corp.

Inventor： DAVIS, Wallace ,  BEELER, Michael

IPC: H04J3/16 ,  H04L29/00

CPC classification number: H04L5/0046 ,  H04B7/18528 ,  H04L1/0003 ,  H04L1/0009 ,  H04L2001/0097

Abstract: A method of maintaining a data rate of a telecommunications link that involves, in a particular embodiment, modulating a carrier signal, encoding the carrier signal, and dynamically controlling a bandwidth of the carrier signal by changing a symbol rate of the carrier signal such that a data rate of the carrier signal remains substantially equal to a predetermined data rate when the carrier signal is transmitted to a remote receiver.

公开(公告)号：EP2727306A1

公开(公告)日：2014-05-07

申请号：EP12803741.3

申请日：2012-06-28

Applicant: Comtech EF Data Corp.

Inventor： BEELER, Michael ,  MORRIS, Frederick ,  MAMARIL, Cris ,  HARIG, Jeffrey ,  CANNON, Richard, Hollingsworth ,  BANISTER, Brian, A.

IPC: H04L29/00 ,  H04B1/707

CPC classification number: H04B1/707 ,  H04B1/7097 ,  H04L27/3488

Abstract: A method of embedding and transmitting a meta-data message in an original burst carrier signal for message reassembly comprising spreading a meta-carrier signal using a Direct Sequence Spread Spectrum (DSSS) spreading code having a Pseudo-Random Noise (PRN) spreading code sequence, the meta-carrier signal comprising one or more bits of meta-data information about the original burst carrier signal, lowering a power spectral density of the meta- carrier signal using the PRN spreading code such that interference with the original signal is reduced, combining the original burst carrier and the meta-carrier signals using a modulator such that a composite burst carrier signal results wherein the meta-carrier signal occupies at least a portion of a bandwidth of the original carrier, and transmitting the composite burst carrier using a transmitter over a telecommunications channel in which only one burst carrier signal is expected to be present within a predetermined frequency bandwidth at a point in time.

公开(公告)号：EP2724474A1

公开(公告)日：2014-04-30

申请号：EP12815478.8

申请日：2012-07-18

Applicant: Comtech EF Data Corp.

Inventor： BEELER, Michael ,  CANNON, Richard, Hollingsworth

IPC: H04B1/62

CPC classification number: H04B7/18513

Abstract: A method of signal distortion correction in a telecommunications channel, the method comprising modeling predicted signal distortion of an electromagnetic (EM) signal using one or more non-linearity model parameters of a signal distortion model, calculating and transferring one or more coefficients of the one or more non-linearity model parameters to a signal transmit location, pre-distorting the signal using an inverse function based on the one or more non-linearity model parameters, and transmitting the pre-distorted signal over the telecommunications channel containing a non-linear amplifier to a remote receiving device.

公开(公告)号：EP2684301A2

公开(公告)日：2014-01-15

申请号：EP12754961.6

申请日：2012-03-10

Applicant: Comtech EF Data Corp.

Inventor： BEELER, Michael ,  HARIG, Jeffrey ,  DAVIS, Wallace ,  MORRIS, Frederick ,  MAMARIL, Cris

IPC: H04B7/185 ,  H04B15/00 ,  H04W52/18

CPC classification number: H04B7/18513 ,  H04B7/18515 ,  H04B7/18528 ,  H04B7/18543

Abstract: A method for remotely and dynamically controlling adjacent satellite interference comprising monitoring one or more off-axis signals emitted by one or more remote transmitters; determining whether one or more of the off-axis signals is creating adjacent satellite interference (ASI), off axis emissions and inband interference that is higher than a predetermined level of acceptable interference, and transmitting a control signal to at least one of the one or more remote transmitters in response to the determination that the one or more off-axis signals is creating interference that is higher than the predetermined level of acceptable interference, the control signal initiating an adjustment to one or more transmission parameters of the one or more remote transmitters such that interference resulting from the one or more off-axis signals emitted by the one or more remote transmitters is reduced or eliminated.