Patent number 8611809 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates generally to satellite video systems, and in particular, to a method, apparatus, and article of manufacture for efficiently delivering satellite broadcast signals.
"Satellite broadcasting of communications signals has become commonplace. Satellite distribution of commercial signals for use in television programming currently utilizes multiple feedhorns on a single Outdoor Unit (ODU) which supply signals to up to eight IRDs on separate cables from a multiswitch.
"FIG. 1 illustrates a typical satellite-based broadcast system of the related art.
"System 100 uses signals sent from Satellite A (SatA) 102, Satellite B (SatB) 104, and Satellite C (SatC) 106 that are directly broadcast to an Outdoor Unit (ODU) 108 that is typically attached to the outside of a house 110. ODU 108 receives these signals and sends the received signals to IRD 112, which decodes the signals and separates the signals into viewer channels, which are then passed to monitor 114 for viewing by a user. There can be more than one satellite transmitting from each orbital location (slot). The orbital slots are typically designated by their longitude, so, for example, a satellite 102 located in the orbital slot at 101 degrees West Longitude (WL) is usually referred to as transmitting from '101.'
"Satellite uplink signals 116 are transmitted by one or more uplink facilities 118 to the satellites 102-104 that are typically in geosynchronous orbit. Satellites 102-106 amplify and rebroadcast the uplink signals 116, through transponders located on the satellite, as downlink signals 120. Depending on the satellite 102-106 antenna pattern, the downlink signals 120 are directed towards geographic areas for reception by the ODU 108.
"Each satellite 102-106 broadcasts downlink signals 120 in typically thirty-two (32) different frequencies, which are licensed to various users for broadcasting of programming, which can be audio, video, or data signals, or any combination. These signals are typically located in the Ku-band of frequencies, i.e., 11-18 GHz, but can also be broadcast in the Ka-band of frequencies, i.e., 18-40 GHz, but typically 20-30 GHz.
"As satellites 102-106 broadcast additional services and additional channels to viewers, it will be necessary to deliver these services in a more efficient manner."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventor's summary information for this patent: "To minimize the limitations in the prior art, and to minimize other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a computationally efficient design for broadcast satellite single wire and/or direct demod interface.
"A broadcast satellite single wire interface in accordance with the present invention comprises a low noise block amplifier module having multiple outputs, a plurality of filter banks, each filter bank coupled to each of the outputs of the low noise block amplifier module in a respective fashion and comprising a plurality of filters, and a plurality of analog-to-digital (A/D) converters, each A/D converter coupled to a filter in the plurality of filters in the plurality of filter banks in a respective fashion, wherein the A/D converters directly sample incoming downconverted broadcast satellite signals and the sampled incoming downconverted broadcast signals are output on a single wire in a stacked output.
"Such an interface further optionally comprises the sampling frequency of the A/D converters being adjustable, a digital signal processor (DSP), the DSP comprising a plurality of polyphase bandpass filters, the plurality of polyphase bandpass filters overlapping in terms of passbands, a plurality of stacked outputs being present, at least one of the plurality of stacked outputs being an In-phase/Quadrature phase (I/Q) near-baseband output, and the I/Q near-baseband output being networked onto a distribution layer.
"Other features and advantages are inherent in the system disclosed or will become apparent to those skilled in the art from the following detailed description and its accompanying drawings."
URL and more information on this patent, see: Popoli, Robert F.. Computationally Efficient Design for Broadcast Satellite Single Wire And/Or Direct Demod Interface. U.S. Patent Number 8611809, filed
Keywords for this news article include: Telecommunications,
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC
Most Popular Stories
- Photo ID Required for Unemployment Benefits
- Software Writers Sought in Indiana
- Ukraine Crisis Limits Losses in Gold, Silver
- Can GOP Dodge Immigration Bullet?
- Tech Firms to Increase Hiring for 4th Year in a Row
- How Past Mistakes Will Drive Ukraine's Future
- Job Fair for S.C. Grads
- Chiquita, Fyffes to Form Top Banana
- Millennials Favor Saving Over Investing: UBS
- Big Earthquake Rumbles Northern California