Full duplex wideband communications system for a local coaxial network
First Claim
1. A system for receiving a video presentation over a local network, the system comprising:
- a server set-top terminal (STT) including;
a wideband modem,a server control transmitter for providing information regarding an optimal frequency of the wideband modem, anda control receiver for receiving information regarding the optimal frequency of a client set-top terminal wideband modem and a request for a stored video presentation from a client control transmitter of a client set-top terminal; and
the client set-top terminal (STT), comprising;
a client control transmitter for requesting the stored video presentation from the server STT and providing the information regarding the optimal frequency of the wideband modem, anda wideband receiver for receiving the requested video presentation,wherein the optimal frequency is determined by employing a search algorithm configured to scan multiple frequencies and select the optimal frequency for both transmitting and receiving information, the optimal frequency being stored at the client set-top terminal and the server set-top terminal.
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Accused Products
Abstract
Systems and methods are disclosed for a full duplex wideband communications system for a local (e.g. in-home) coaxial network. The system employs a Frequency-division duplex (FDD) scheme that allows identical wideband modems to communicate with each other. To achieve this, the wideband modems contain a duplexer and a switch that allows reversing the connection of the wideband transmitter and receiver to the duplexer. Each wideband modem includes a control modem that is used to control access to the wideband channels. A wideband transmitter, which may be included in a modem associated with a server set-top terminal (STT), transmits a video presentation to a wideband receiver, which may be included in a modem associated with a client STT.
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Citations
12 Claims
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1. A system for receiving a video presentation over a local network, the system comprising:
a server set-top terminal (STT) including; a wideband modem, a server control transmitter for providing information regarding an optimal frequency of the wideband modem, and a control receiver for receiving information regarding the optimal frequency of a client set-top terminal wideband modem and a request for a stored video presentation from a client control transmitter of a client set-top terminal; and the client set-top terminal (STT), comprising; a client control transmitter for requesting the stored video presentation from the server STT and providing the information regarding the optimal frequency of the wideband modem, and a wideband receiver for receiving the requested video presentation, wherein the optimal frequency is determined by employing a search algorithm configured to scan multiple frequencies and select the optimal frequency for both transmitting and receiving information, the optimal frequency being stored at the client set-top terminal and the server set-top terminal. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11)
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7. A set-top terminal (STT), comprising:
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a client control transmitter for requesting a stored video presentation from a server STT, wherein the request includes a requesting STT address; at least one tuner for receiving one of cable television signals and high data rate communications, wherein the high data rate communications comprises a transmitted video presentation transmitted at an optimal frequency determined by a search algorithm configured to find the optimal frequency for communicating with the server STT, the optimal frequency being stored at the STT and the server STT; and a receive switch for receiving a routing one of the cable television signals and the high data rate communications to the at least one tuner, wherein the received video presentation is subsequently provided to a viewing device for display. - View Dependent Claims (8)
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12. A system for receiving a video presentation over a local network, the system comprising:
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a server set-top terminal (STT) comprising; a wideband modem, a server control transmitter for providing information regarding an optimal frequency of the wideband modem in one of a high band a low band, and a control receiver for receiving the optimal transmitting frequency of the wideband modem and a request for a stored video presentation; and a client set-top terminal (STT), comprising; a client control transmitter for requesting the stored video presentation from the server STT and providing the optimal frequency of the wideband modem, and a wideband receiver for receiving the requested video presentation, wherein the control receiver and the client control transmitter operate on a single frequency and in a half-duplex mode, wherein the control receiver receives and the client control transmitter transmits data packets as burst packages using a modulation scheme, wherein each of the burst packages include an error-detection code and a destination address, wherein the client control transmitter is configured to send a message to other client set-top terminal, the message indicating a high and a low frequency the client set-top terminal is currently using, wherein when the client set-top terminal and the other client set-top terminal connect the local network, a search algorithm is used to determine best signal parameters for both transmitting and receiving information between the client set-top terminal and the other client set-top terminal.
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Specification