Patent ID: 9748696
Date: 2017-08-29
CPC Classifications: H01R

Claim:
1. An active cable, comprising: a cable provided with a plurality of differential signal transmission cables; a connector provided at each of both ends of the cable; a paddle card including a multilayer substrate which is built in the connector and is configured such that an electrode electrically connected to a connection target device is formed at one end of the paddle card and the differential signal transmission cables are electrically connected to an other end of the paddle card to electrically connect the device and the differential signal transmission cables to one another; a transmission side transmission channel formed in the paddle card that transmits an electric signal input from the connection target device to the differential signal transmission cables; a reception side transmission channel formed in the paddle card that transmits an electric signal input from the differential signal transmission cables to the connection target device; and a compensation circuit provided in the reception side transmission channel and configured to compensate an electric signal input from the differential signal transmission cables in accordance with a loss property of the differential signal transmission cables and output the compensated electric signal, wherein a ground pattern sandwiches at least one of: wherein the ground pattern extends from the other end of the paddle card to the side of the compensation circuit that faces the other end of the paddle card, wherein the ground layer corresponding to the transmission side transmission channel and the ground layer corresponding to the reception side transmission channel are electrically separated, wherein, in a direction of an extension of the ground pattern from the one end of the paddle card to the other end of the paddle card, another part of the transmission side transmission channel, which is located between the one end of the paddle card and another side of the compensation circuit that faces the one end of the paddle card, extends beyond an end edge of the ground pattern, and wherein, in the direction of the extension of the ground pattern, another part of the reception side transmission channel, which is located between the one end of the paddle card and said another side of the compensation circuit, extends beyond the end edge of the ground pattern.