Signal transmission structure
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsShou-Kuo Hsu, Cheng-Hong Liu
Life of this patent
Estimating the term…
Abstract
A signal transmission structure includes a driving circuit block, a receiving circuit block, a main transmission line, and a radial patch. The main transmission line connects the driving circuit block to the receiving circuit block. The radial patch is formed between the driving circuit block and the main transmission line. The radial patch can reduce a switching rate when the signal state of the driving circuit changes rapidly. The radial patch serves as a compensation capacitor, to reduce a rate of switching of signals, and to reduce or even eliminate the problems of crosstalk and overshooting and undershooting of signals. It is of advantage that the radial patch is simple to manufacture and very suitable for mass production.
Claims17
A signal transmission structure comprising:
- a driving circuit block;
- a receiving circuit block;
- a main transmission line connecting the driving circuit block to the receiving circuit block;
- and
- a radial patch provided between the driving circuit block and the main transmission line, for reducing a switching rate of a signal.
A signal transmission structure comprising:
- a driving circuit block, the driving circuit block comprising a driving circuit and a first branch transmission line coupled to the driving circuit;
- at least one receiving circuit block, the receiving circuit block comprising a receiving circuit and a second branch transmission line coupled to the receiving circuit;
- a main transmission line coupling to the second transmission line;
- and
- a radial patch connecting the first branch transmission line and the main transmission line, for reducing a switching rate of a signal of the driving circuit.
A method to establish capacitance ability of a circuit on a circuit board for signal transmission, comprising the steps of:
- attaching a transmission line of a circuit on a circuit board for signal transmission, said transmission line having at least two electrically connective ends;
- electrically connecting a driving circuit with one of said at least two ends of said transmission line, and connecting at least one receiving circuit with respectively another of said at least two ends of said transmission line so as to perform said signal transmission between said driving and receiving circuits along said transmission line;
- and
- forming an electrically conductive patch integrally extending along said circuit board and away from a portion of said transmission line located between said one of said at least two ends of said transmission line and said another of said at least two ends of said transmission line so as to perform capacitance ability of said circuit by said patch.
Dependencies are inferred from the claim text.