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公开(公告)号：US11929824B2
公开(公告)日：2024-03-12
申请号：US18112778
申请日：2023-02-22
摘要： An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.
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2.发明授权公开(公告)号：US11711237B2
公开(公告)日：2023-07-25
申请号：US17103215
申请日：2020-11-24
发明人： Branislav Petrovic
IPC分类号： H04L12/28 , H04L43/50 , G06F1/3206 , H04L12/12 , H04N21/61 , H04L43/0811 , H04L41/0833 , G06F1/3287 , G06F1/26 , G06F1/3209 , G06F1/3296 , H04L12/10 , H04L1/24 , H04L41/12
CPC分类号： H04L12/2861 , G06F1/266 , G06F1/3206 , G06F1/3209 , G06F1/3287 , G06F1/3296 , H04L1/24 , H04L12/10 , H04L12/12 , H04L12/2801 , H04L41/0833 , H04L41/12 , H04L43/0811 , H04L43/50 , H04N21/6118 , H04N21/6168 , Y02D10/00 , Y02D30/50
摘要： Methods and systems are provided for power management in communication devices, particularly based on cable connectivity. A power management component in a system may be configured to obtain measurements associated with a signal path used for communication by the system via a communication port, and manage power use in the system based on the obtained measurement. Managing the power use may include determining, based on the obtained measurements, connectivity related information associated with connectivity of the system via the communication port, and applying based on the information one or more power use reduction measures, with the one or more power use reduction measures including at least transitioning between different power related states.
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公开(公告)号：US20220069930A1
公开(公告)日：2022-03-03
申请号：US17473383
申请日：2021-09-13
摘要： An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.
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公开(公告)号：US10237100B2
公开(公告)日：2019-03-19
申请号：US15977844
申请日：2018-05-11
发明人： Branislav Petrovic , Itzhak Gurantz
摘要： Methods and systems for digitization of broadband analog signals may comprise in a radio frequency (RF) transceiver comprising a diplexer, first and second automatic gain and slope control (ASCS) modules, and a combiner): receiving an input RF signal comprising at least two signals, splitting the input RF signal in the frequency domain into first and second signals of different frequency utilizing the diplexer, configuring a frequency-dependent gain level for each of the first and second signals utilizing the first and second ASCS modules, and combining output signals from the first and second ASCS modules utilizing the combiner. The frequency dependent gain levels of the first and second signals may be configured to enable an ADC receiving the combined signal to operate with an effective number of bits (ENOB) of approximately 10.
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公开(公告)号：US20180294825A1
公开(公告)日：2018-10-11
申请号：US16008558
申请日：2018-06-14
发明人： Branislav Petrovic , Michael Farese
IPC分类号： H04B1/04 , H03G3/00 , H03F1/32 , H03F3/19 , H03F3/191 , H03F3/21 , H03F1/02 , H04B1/00 , H03H21/00
摘要： Systems and methods for controlling a power amplifier includes combining a digital modulated data signal with a digital bias signal to generate a combined digital signal, the digital bias signal generated based on an envelope for the modulated data signal; converting, by a digital-to-analog converter, the combined digital signal into a combined analog signal, the combined analog signal comprising an analog modulated data signal and an analog envelope bias signal; and separating the analog modulated data signal and the analog bias signal onto separate signal paths, wherein the converting is performed using a single digital-to-analog converter.
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公开(公告)号：US20180254788A1
公开(公告)日：2018-09-06
申请号：US15974439
申请日：2018-05-08
发明人： Branislav Petrovic
CPC分类号： H04B1/1027 , H03G3/3052 , H03G3/3078 , H04B17/336 , H04L5/0046
摘要： Systems and methods for dynamically adjusting the gain in a receiver front end to have a desired amount of headroom, based upon a measurement of the signal to noise ratio (SNR) of the output of a digital to analog converter and the amount of degradation to the SNR due to previous adjustments to the gain.
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公开(公告)号：US20180109653A1
公开(公告)日：2018-04-19
申请号：US15832997
申请日：2017-12-06
发明人： Inderjit Singh , Branislav Petrovic
IPC分类号： H04L29/06 , H04L12/28 , H04L12/749 , H04L12/741 , H04L12/947
CPC分类号： H04L69/08 , H04L12/2801 , H04L12/2838 , H04L45/74 , H04L45/741 , H04L49/25
摘要： A USB-to-coaxial network bridging system and method includes receiving data frames from a USB or FireWire device via a corresponding USB or FireWire communication interface, wherein the received data frames are intended for transmittal to a predetermined remote device on a coaxial network; combining the received data frames into an aggregated frame and addressing the aggregated frame to allow the aggregated frame to be routed to the predetermined remote device on the coaxial network; and sending the aggregated frame to the remote device over the coaxial network.
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公开(公告)号：US20180102862A1
公开(公告)日：2018-04-12
申请号：US15830072
申请日：2017-12-04
摘要： An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.
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公开(公告)号：US09674017B2
公开(公告)日：2017-06-06
申请号：US15096973
申请日：2016-04-12
IPC分类号： H03K7/08 , H04L27/10 , H04L25/49 , H03M3/00 , H04B1/692 , H04B1/717 , H03M1/82 , H04L27/04 , H04B1/707 , H04B1/7163
CPC分类号： H04L27/103 , H03M1/822 , H03M3/506 , H04B1/692 , H04B1/707 , H04B1/71632 , H04B1/7172 , H04B2201/71638 , H04L25/4902 , H04L27/04
摘要： Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example spreading circuit may comprise an accumulator circuit, a bit generator circuit, a comparator circuit, and an inverter circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and at least one other input. The bit generator circuit may be operable to input into the accumulator circuit zero-sum sequences. The comparator circuit may be operable to provide a stream of pulses based on the output of the accumulator circuit. The inverter circuit may be operable to invert output of the comparator circuit, wherein output of the inverter circuit is input into the accumulator circuit.
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公开(公告)号：US20170126310A1
公开(公告)日：2017-05-04
申请号：US15357709
申请日：2016-11-21
发明人： Branislav Petrovic , Tommy Yu , Troy Brandon , Ralph Duncan
CPC分类号： H04B7/18513 , H04B1/28 , H04B7/18515 , H04B7/18517 , H04L5/0001 , H04L5/0048 , H04W24/08
摘要： Systems and methods for correcting frequency error in a received signal include: receiving a satellite signal, the satellite signal having a bandwidth and a center frequency; determining the profile of the satellite signal; computing the center frequency of the satellite signal based on the profile of the received signal; and generating a reference signal at the computed center frequency. The systems and methods may further include computing a center frequency of each of a plurality of satellite signals based on the computed center frequency. Determining the profile may include sweeping a tuner above and below a given reference frequency; measuring the received signal strength during the sweeping operation; and determining the profile based on the received signal strength.
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