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US 7,460,535 B2Granted
Device and method that allows single data recovery circuit to support multiple USB ports
AssigneeSynopsys, Inc.
InventorRavikumar Govindaraman
Life of this patent
Estimating the term…
Abstract
A method and apparatus for routing data in a device having a plurality of parts. A signal is received at a first port. A detection is made that the first port received the signal. Information contained in the signal is selectively routed from the first port to a data recovery circuit.
Claims28
A data recovery module, comprising:
- a plurality of input components;
- a data recovery circuit;
- a routing circuit coupled between the input components and the data recovery circuit, wherein the routing circuit routes signals received by the input components to the data recovery circuit;
- and
- port select logic coupled between an output of each of the plurality of input components and the routing circuit,
- wherein each input component is configured to generate a signal that enables the data recovery circuit and indicates to the port select logic that a transmission is being received.
3 more elements
A system for routing data in a device having a plurality of ports, the system comprising:
- means for receiving signals at a plurality of ports from a plurality of peripheral devices;
- means for detecting that each port is receiving a signal;
- and
- means for selectively routing the signal from the first port to a data recovery circuit, the means for selectively routing including port select logic,
- wherein the means for detecting is configured to generate a signal that enables the data recovery circuit and indicates to the port select logic that a transmission is being received.
2 more elements
A method for extracting data in a hub/repeater having a plurality of ports and a single data recovery circuit, the method comprising the steps of:
- receiving a first signal at a first downstream port of the hub repeater;
- detecting that the first signal is received at the first downstream port;
- and
- creating a transmission path between the first downstream port and the data recovery circuit using port select logic,
- wherein detecting includes generating a signal that enables the data recovery circuit and indicates to the port select logic that a transmission is being received.
2 more elements
Dependencies are inferred from the claim text.