Patent ID: 7667138
Filing Date: 2010-02-23
Classification: H01B,H01R

Abstract:
1. An electronic apparatus comprising: a flexible flat cable which interconnects a first electronic component and a second electronic component, the flexible flat cable including a first insulation layer, a plurality of signal lines and a plurality of ground lines which are disposed in parallel on the first insulation layer, a second insulation layer which is provided on the plurality of signal lines and the plurality of ground lines in such a manner as to expose both end portions of the plurality of signal lines and the plurality of ground lines, an electromagnetic shield layer provided on the second insulation layer, and a plurality of connection lines which electrically connect the plurality of ground lines and the electromagnetic shield layer, each of the plurality of connection lines including a first connection line member which extends from one end portion of the associated ground line and is held between the second insulation layer and the electromagnetic shield layer, and a second connection line member which extends from the other end portion of the associated ground line and is held between the second insulation layer and the electromagnetic shield layer, an arrangement of the signal lines and the ground lines that are positioned on one side of a center line of the flexible flat cable, which is parallel to a longitudinal direction of the flexible flat cable, and an arrangement of the signal lines and the ground lines that are positioned on the other side of the center line being symmetric with respect to the center line; and a first connector and a second connector which are provided in the first electronic component and the second electronic component, respectively, and are connected to one end portion and the other end portion of the flexible flat cable, respectively, each of the first and second connectors including a plurality of signal terminals corresponding to the plurality of signal lines and a plurality of ground terminals corresponding to the plurality of ground lines, each of the plurality of ground terminals being grounded, at least one signal terminal of the plurality of signal terminals, which is interposed between two neighboring ones of the plurality of ground terminals, being assigned a signal which is to be transmitted from one of the first and second electronic components to the other, and at least one other signal terminal of the plurality of signal terminals being assigned a ground potential that is a reference signal which is to be transmitted from one of the first and second electronic components to the other.