Abstract: A main line (transmission line) has a first end and a second end. A sub-line (transmission line) coupled to the main line has a third end and a fourth end. The main line and the sub-line are coupled to each other. A direction of the main line is identical to a direction of the sub-line. An unbalanced node is connected to the first end. The first balanced node is connected to the first end, and the second balanced node is connected to the fourth end. The second end and the third end are connected to a reference potential. A first LC resonant circuit is connected between the first balanced node and the unbalanced node, the second balanced node and the fourth end, or the first end and the unbalanced node.

Abstract: A main line (transmission line) having a first end and a second end. A sub-line (transmission line) coupled to the main line. An unbalanced signal is input to and output from an unbalanced node connected to the first end. A balanced signal is input to and output from a first balanced node and a second balanced node. The main line and the sub-line are coupled to each other. A direction of the main line is identical to a direction of the sub-line. The second end and the third end are connected to a reference potential. The first balanced node and the second balanced node are connected to the unbalanced node and the fourth end, respectively. A first LC resonant circuit is connected between the second end and the reference potential or the third end and the reference potential.

Abstract: A first transmission line transformer receives and outputs an unbalanced signal and performs impedance transformation. A second transmission line transformer performs unbalanced-to-balanced transformation. The first transmission line transformer includes a first main line and a first sub-line. The direction of the first main line is identical to the direction of the first sub-line. An end of the first sub-line is grounded. An end of the first main line is coupled to the unbalanced-signal input/output node. The second transmission line transformer includes a second main line and a second sub-line. The direction of the second main line is identical to a direction of the second sub-line. An end of the second main line and the second sub-line are grounded. An end of the second main line and the second sub-line are coupled to the balanced-signal input/output nodes.

Abstract: In a printing machine, it is enabled to prevent continuous paper from being broken when the continuous paper is initially fed through a path of its conveyance. The paper conveying apparatus is provided that the path of conveyance of continuous paper 1 is provided with a first, a second and a third feed roll unit 5, 6 and 7, having their respective feed rates which when continuous paper is printed on and machined are controlled to increase in the order of the feed roll units to generate a proper amount of tension imparted thereto and which when the continuous paper is initially fed through the path are controlled to decrease in the order of the feed roll units so as not to generate tension whereby the continuous paper is prevented from being broken in the course of initial paper threading in the printing machine.

Abstract: In a printing machine, it is enabled to prevent continuous paper from being broken when the continuous paper is initially fed through a path of its conveyance. The paper conveying apparatus is provided that the path of conveyance of continuous paper 1 is provided with a first, a second and a third feed roll unit 5, 6 and 7, having their respective feed rates which when continuous paper is printed on and machined are controlled to increase in the order of the feed roll units to generate a proper amount of tension imparted thereto and which when the continuous paper is initially fed through the path are controlled to decrease in the order of the feed roll units so as not to generate tension whereby the continuous paper is prevented from being broken in the course of initial paper threading in the printing machine.