Signal transmission system

• US 6,580,295 B2
• Filed: 02/07/2001
• Issued: 06/17/2003
• Est. Priority Date: 06/07/1996
• Status: Expired due to Term

• Current Assignee: Hitachi Maxell Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Takekuma, Toshitsugu, Yamagiwa, Akira, Moriyama, Takashi, Kurihara, Ryoichi
• Primary Examiner(s): LE, DON P
• Application Number:
  US09/777,895
• Publication Number:
  US 20010005146A1
• Time in Patent Office: 860 Days
• Field of Search: 326/82, 326/38-41, 326/30, 326/93, 326/101
• US Class Current: 326/101
• CPC Class Codes: G06F 13/4077 Precharging or discharging

Abstract

A signal transmission system includes a first circuit block having a first output circuit for producing a first signal, a plurality of second circuit blocks each including a first receiving circuit for receiving the first signal, and transmission lines connected between the first circuit block and the second circuit blocks, wherein the first circuit block further includes a second output circuit for producing a second signal, and wherein each of the second circuit blocks further includes a second receiving circuit for receiving the second signal, the first receiving circuit latching the first signal in synchronism with the second signal, removing the unsuccessfulness in the signal transmission and reception due to the propagation delay of signals between circuits.

Claims

1. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a second output circuit for producing a second signal;

a plurality of second circuit blocks each including a first receiving circuit for receiving said first signal, and a second receiving circuit for receiving said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal; and

a first resistor provided between said third transmission line and said first transmission line;

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line, and

wherein said first and second transmission lines have termination resistors connected at one distal ends for impedance matching between transmission lines.

2. A signal transmission system according to claim 1, wherein said termination resistors connected to said second transmission lines at distal ends of said second circuit blocks.

3. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a second output circuit for producing a second signal;

a plurality of second circuit blocks each including a first receiving circuit for receiving said first signal, and a second receiving circuit for receiving said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal; and

a first resistor provided between said third transmission line and said first transmission line;

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line, and

wherein said first resistor exhibits a resistance value in the range from 0.5 times to twice the remainder of the subtraction of a half of the impedance of said first transmission line from the impedance of said third transmission line.

4. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a second output circuit for producing a second signal;

a plurality of second circuit blocks each including a first receiving circuit for receiving said first signal, and a second receiving circuit for receiving said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal;

a first resistor provided between said third transmission line and said first transmission line;

a fourth transmission line provided between said second output circuit and said second transmission line for transmitting said second signal; and

a second resistor provided between said fourth transmission line and said second transmission line,

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line.

5. A signal transmission system according to claim 4, wherein said second resistor exhibits a resistance value in the range from 0.5 times to twice the remainder of the subtraction of a half of the impedance of said second transmission line from the impedance of said fourth transmission line.

6. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a first input circuit for receiving a second signal;

a plurality of second circuit blocks each including a second receiving circuit for receiving said first signal, and a second output circuit for producing said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal; and

a first resistor provided between said third transmission line and said first transmission line;

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line, and

wherein said plurality of second circuit blocks are connected with said first transmission line in a reverse order of a connection between said plurality of second circuit blocks and said second transmission line.

7. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a first input circuit for receiving a second signal;

a plurality of second circuit blocks each including a second receiving circuit for receiving said first signal, and a second output circuit for producing said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal; and

a first resistor provided between said third transmission line and said first transmission line;

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line, and

wherein said first and second transmission lines have termination resistors connected at one distal ends for impedance matching between transmission lines.

8. A signal transmission system according to claim 7, wherein said termination resistors connected to said second transmission lines at distal ends of said second circuit blocks.

9. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a first input circuit for receiving a second signal;

a plurality of second circuit blocks each including a second receiving circuit for receiving said first signal, and a second output circuit for producing said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal; and

a first resistor provided between said third transmission line and said first transmission line;

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line, and

wherein said first resistor exhibits a resistance value in the range from 0.5 times to twice the remainder of the subtraction of a half of the impedance of said first transmission line from the impedance of said third transmission line.

10. A signal transmission system comprising:

a first circuit block including a first output circuit for producing a first signal, and a first input circuit for receiving a second signal;

a plurality of second circuit blocks each including a second receiving circuit for receiving said first signal, and a second output circuit for producing said second signal;

a first transmission line transmitting said first signal;

a second transmission line transmitting said second signal;

a third transmission line provided between said first output circuit and said first transmission line for transmitting said first signal;

a first resistor provided between said third transmission line and said first transmission line;

a fourth transmission line provided between said first input circuit and said second transmission line for transmitting said second signal; and

a second resistor provided between said fourth transmission line and said second transmission line,

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line.

11. A signal transmission system according to claim 10, wherein said second resistor exhibits a resistance value in the range from 0.5 times to twice the remainder of the subtraction of a half of the impedance of said second transmission line from the impedance of said fourth transmission line.

12. A signal transmission system comprising:

a clock generation circuit for generating a first clock signal;

a first circuit block having a clock distribution circuit for distributing said first clock signal received from said clock generation circuit, a first output circuit for supplying a second clock signal distributed from said clock distribution circuit, and a second output circuit for supplying a third clock signal;

a plurality of second circuit blocks each having a first receiving circuit for receiving said second clock signal, a second receiving circuit for receiving said third clock signal, a latch circuit for latching said third clock signal in synchronism with said second clock signal;

a first transmission line transmitting said second clock signal;

a second transmission line transmitting said third clock signal; and

wherein each of said plurality of second circuit blocks is connected with said first transmission line and said second transmission line.

13. A signal transmission system according to claim 12, wherein said clock distribution circuit multiplies said first clock signal by ½

and distributes the halved-frequency clock to said first output circuit.

14. A signal transmission system according to claim 13, further comprising a circuit for doubling the frequency of said second clock signal received by said first receiving circuit provided between said second receiving circuit and said latch circuit.

15. A signal transmission system according to claim 12, wherein said first and second transmission lines have termination resistors connected at one distal ends for impedance matching between transmission lines.

16. A signal transmission system according to claim 15, wherein said termination resistors connected to said second transmission lines at distal ends of said second circuit blocks.