Circuit and method for receiving data
AssigneeNokia Corporation
InventorAki Happonen
Life of this patent
Estimating the term…
Abstract
A circuit for receiving data includes a first receiver having an input for receiving data and an input for receiving a first clock signal. The data is clocked into the first receiver by the first clock signal. The circuit also has a second receiver having an input for receiving data and an input for receiving a second clock signal. The first and second clock signals have the same frequency and are phase shifted with respect to one another. The data is clocked into the second receiver by the second clock signal. Determination is provided to determine if at least one of the receivers has correctly received the data. A first output of one of the receivers is enabled in accordance with the determination.
Claims28
A circuit for receiving data comprising:
- a first receiver having an input for receiving said data and an input for receiving a first clock signal, whereby said data is clocked into said first receiver by said first clock signal;
- a second receiver having an input for receiving said data and an input for receiving a second clock signal, said first and second clock signals having an identical clock frequency and being phase shifted with respect to one another, whereby said data is clocked into said second receiver by said second clock signal;
- determining circuitry for determining if at least one of said receivers has correctly received said data;
- and
- enabling circuitry for selectively enabling a first output of one of the receivers in accordance with the determination made by said determining circuitry, wherein said determining circuitry is arranged to detect an indication of the beginning of the data and to determine if the data received by at least one of said receivers includes a known pattern, and wherein said determining circuitry is arranged to determine if the data received by at least one receiver includes the known pattern only if the indication of the beginning of data has been detected.
A method for receiving data comprising the steps of clocking said data into a first receiver using a first clock signal;
- clocking said data into a second receiver using a second clock signal, the first and second clock signals having an identical clock frequency and being phase shifted with respect to one another;
- detecting an indication of the beginning of the data;
- determining a known pattern if the indication of the beginning of the data has been detected;
- determining if at least one of said receivers has correctly received said data;
- and
- enabling the output of one of said receivers in accordance with the determination made in the step of determining if the at least one of said receivers has correctly received said data, wherein the determination of whether at least one of said receivers has correctly received said data only occurs if said indication of the beginning of the data has been detected and the data received by at least one of said receivers includes the known pattern.
A circuit for receiving data comprising:
- a first receiver having input for receiving said data and an input for receiving a first clock signal, whereby said data is clocked into said first receiver by said first clock signal;
- a second receiver having input for receiving said data and an input for receiving a second clock signal, said first and second clock signals having an identical clock frequency and being phase shifted with respect to one another, whereby said data is clocked into said second receiver by said second clock signal;
- determining circuitry for determining if at least one of said receivers has correctly received said data;
- enabling circuitry for selectively enabling a first output of one of the receivers in accordance with the determination made by said determining circuitry, wherein said circuit is operable to designate a default receiver based on which receiver was enabled by said enabling circuitry for a previous portion of data and wherein said determining circuitry is arranged to detect an indication of the beginning of the data and to determine if the data received by the at least one of said receivers includes a known pattern, and wherein said determining circuitry is arranged to determine if the data received by at least one receiver includes the known pattern only if the indication of the beginning of data has been detected.
Dependencies are inferred from the claim text.