Patent ID: 8811501
Filing Date: 2014-08-19
Classification: H04L

Abstract:
1. A receiving apparatus connected to a transmission apparatus that transmits data, comprising: a clock generating unit that generates a clock signal at a predetermined frequency; a clock angle-advancing unit that generates a plurality of angle-advanced clock signals including the clock signal generated by the clock generating unit and a plurality of clock signals corresponding to a plurality of timings and generated by angle-advancing the clock signal by predetermined phases; a receiving unit that uses the angle-advanced clock signals to receive at the plurality of timings, the data transmitted by the transmitting apparatus; a detecting unit that detects each rising edge of each of the received data received by the receiving unit, and each falling edge of each of the received data received by the receiving unit; a determining unit that based on the detected rising edge of each of the received data and the detected falling edge of the received data, produces a plurality of selection signals that each determine, among the plurality of timings, a restoration timing to restore the data, and a plurality of previous selection signals retaining the selection signals; a judging unit that judges a transition direction of the restoration timing among the plurality of timings, based on the selection signals and the previous selection signals; a selecting unit that selects transfer data from among the received data, based on the received data and the previous selection signals corresponding to the received data; and a valid information producing unit that produces valid information of the transfer data selected by the selecting unit, based on the selection signals, the previous selection signals, and the transition direction of the restoration tinning judged by the judging unit.