US 8,553,102 B2Granted

Electronic apparatus including multiple differential signal lines

AssigneeCanon Kabushiki Kaisha

InventorMotonari Yamada

Life of this patent

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Abstract

An electronic apparatus that can prevent occurrence of crosstalk between different differential signals on a printed circuit board on which a wiring pattern of a differentially operated signal line is formed, and reduce unnecessary radiation noises. First and second wiring patterns are disposed on the printed circuit board and through which differentially operated signals are transmitted, and the first and second wiring patterns are electrically connected to first and second connection terminals, respectively. An electronic component is disposed on the printed circuit board, and includes first and second terminals electrically connected to the first and second wiring patterns, respectively. The first and second terminals of the electronic component are disposed on the printed circuit board, respectively, so that the first and second wiring patterns do not intersect each other.

Claims15

Dependent claims

An electronic apparatus comprising:

a printed circuit board;
a first connection terminal mounted on the printed circuit board;
a second connection terminal mounted on the printed circuit board;
a processor unit mounted on the printed circuit board, and include a first terminal, a second terminal and a third terminal;
an image pickup control unit mounted on the printed circuit board, and configured to obtain an image data,
wherein the first and second connection terminals are mounted at an end on one side of the printed circuit board,
wherein the first and second terminals are disposed in positions corresponding to a mounting place of the first and second connection terminals,
wherein the third terminal is disposed so that the third terminal faces the first and second terminals,
wherein a first wiring pattern formed on the printed circuit board is electrically connected the first connection terminal and the first terminal,
wherein a second wiring pattern formed on the printed circuit board is electrically connected the second connection terminal and the second terminal,
wherein a third wiring pattern formed on the printed circuit board is electrically connected the image pickup control unit and the third terminal,
wherein the first and second wiring pattern are formed on the printed circuit board so that the first and second wiring pattern do not intersect each other, and
wherein the third wiring pattern is formed on the printed circuit board so as not to intersect the first and second wiring patterns.

10 more elements

An electronic apparatus comprising:

a printed circuit board;
a first connection terminal mounted on the printed circuit board;
a second connection terminal mounted on the printed circuit board;
a processor unit mounted on the printed circuit board, and include a first terminal, a second terminal and a third terminal;
an image signal transmission board which is electrically connected to the printed circuit board and configured to transmit an image data generated by an image sensor to the printed circuit board,
wherein the first and second connection terminals are mounted at an end on one side of the printed circuit board,
wherein the first and second terminals are disposed in positions corresponding to a mounting place of the first and second connection terminals,
wherein the third terminal is disposed so that the third terminal faces the first and second terminals,
wherein a first wiring pattern formed on the printed circuit board is electrically connected the first connection terminal and the first terminal,
wherein a second wiring pattern formed on the printed circuit board is electrically connected the second connection terminal and the second terminal,
wherein a third wiring pattern formed on the printed circuit board is electrically connected the image signal transmission board and the third terminal,
wherein the first and second wiring pattern are formed on the printed circuit board so that the first and second wiring pattern do not intersect each other, and
wherein the third wiring pattern is formed on the printed circuit board so as not to intersect the first and second wiring patterns.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/703,445Filed 10 Feb 2010
Priority: JP 2009-02853210 Feb 2009
Published: US 2010/0201838 A112 Aug 2010
Granted: 8 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H05K 1/0216
Electrical arrangements not otherwise provided for: reduction of cross-talk, noise or electromagnetic interference
H05K 1/0245
High frequency adaptations: lay-out of balanced signal pairs, e.g. differential lines or twisted lines
H05K 1/147
Structural association of two or more printed circuits: at least one of the printed circuits being bent or folded, e.g. by using a flexible…
H05K 1/181
Structurally associated with non-printed electric components: associated with surface mounted components