Patent ID: 11930588

Abstract:
There are provided a signal transmission apparatus and a signal transmission method for use therewith, the apparatus using a small-sized connector configuration and a flexible printed circuit board to prevent a decrease in the quality of a differential signal. The flexible printed circuit board has signal transmission paths for transmitting the differential signal. At least one of connector connection parts of the flexible printed circuit board has a first connection part column and a second connection part column obtained by arranging a plurality of signal line connection parts, the signal line connection parts being connection parts between the signal transmission paths and intra-connector wiring. Each of the signal line connection parts in the connection part columns is configured to be connected with the signal transmission path formed on the back side of the flexible printed circuit board by way of a VIA (through-hole) formed between the first connection part column and the second connection part column. For example, the first connection part column includes a GND signal line connection part and a positive signal line connection part, and the second connection part column includes a GND signal line connection part and a negative signal line connection part.