A signal transmitting circuit includes a circuit block having a driving circuit and an intra-block transmission line for transmitting a signal from the driving circuit, a circuit block having a receiving circuit and an intra-block transmission line for transmitting the signal to said receiving circuit, and a main interblock transmission line for propagating a signal between the driving and receiving circuit blocks. The inter-block transmission line is terminated by a resistor having substantially the same impedance as the interblock transmission line. The intra-block transmission lines are provided with a resistance element having a resistance substantially equal to a value derived by subtracting half of an impedance of the inter-block transmission line from an impedance of the intra-block transmission line, to lower signal amplitude and suppress reflections of a signal at branch points along the main interblock transmission line, thereby enabling a high-speed signal transfer.

Claims

106 · 6 independent · depth 3

106 granted claims

›1.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector to connect the mother board and the fir…+18

›2.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor has a value capable of reducing an impedance difference between the main…d2

›3.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor is capable of reducing reflections, in the first transmission line cause…d2

›4.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor is capable of reducing reflections, in the first transmission line cause…d2

›5.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor is capable of reducing reflections, in the first transmission line cause…d2

›6.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor is capable of reducing reflections, in the first transmission line cause…d2

›7.↳ 1A signal transmitting system according to claim 1,nwherein the impedance of the main transmission line is lower than the impedance of the first transm…d2

›8.↳ 1A signal transmitting system according to claim 1,nwherein the main transmission line is terminated at only one end.d2

›9.↳ 1A signal transmitting system according to claim 1,nwherein the main transmission line is terminated at both ends with the same voltage.d2

›10.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor has a resistance value substantially equal to a value derived by subtrac…d2

›11.↳ 1A signal transmitting system according to claim 1,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the val…d2

›12.↳ 1A signal transmitting system according to claim 1, further comprising:na second daughter board comprising:na second driver to output a signal;a second…d2+6

›13.↳ 12A signal transmitting system according to claim 12,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d3

›14.↳ 12A signal transmitting system according to claim 12,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d3

›15.↳ 12A signal transmitting system according to claim 12,nwherein a value of a supply voltage supplied to the signal transmitting system, an output characte…d3

›16.↳ 12A signal transmitting system according to claim 12,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›17.↳ 12A signal transmitting system according to claim 12,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›18.↳ 12A signal transmitting system according to claim 12,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›19.↳ 1A signal transmitting system according to claim 1, wherein said first resistor has a value capable of reducing repetitive reflections.d2

›20.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector adapted to connect the mother board and…+17

›21.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›22.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›23.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›24.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›25.↳ 20A signal transmitting system according to claim 20,nwherein the impedance of the main transmission line is lower than the impedance of the first trans…d2

›26.↳ 20A signal transmitting system according to claim 20,nwherein the main transmission line is terminated at only one end.d2

›27.↳ 20A signal transmitting system according to claim 20,nwherein the main transmission line is terminated at both ends with the same voltage.d2

›28.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d2

›29.↳ 20A signal transmitting system according to claim 20,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d2

›30.↳ 20A signal transmitting system according to claim 20, further comprising:na second daughter board comprising:na second driver to output a signal;a secon…d2+6

›31.↳ 30A signal transmitting system according to claim 30,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d3

›32.↳ 30A signal transmitting system according to claim 30,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d3

›33.↳ 30A signal transmitting system according to claim 30,nwherein a value of a supply voltage supplied to the signal transmitting system, an output characte…d3

›34.↳ 30A signal transmitting system according to claim 30,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›35.↳ 30A signal transmitting system according to claim 30,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›36.↳ 30A signal transmitting system according to claim 30,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›37.↳ 20A signal transmitting system according to claim 20, wherein the first resistor has a value capable of reducing repetitive reflections.d2

›38.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector to connect the mother board and the fir…+17

›39.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor has a value capable of reducing an impedance difference between the mai…d2

›40.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›41.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›42.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›43.↳ 38A signal transmitting system according to claim 38,nwherein the impedance of the main transmission line is lower than the impedance of the first trans…d2

›44.↳ 38A signal transmitting system according to claim 38,nwherein the main transmission line is terminated at only one end.d2

›45.↳ 38A signal transmitting system according to claim 38,nwherein the main transmission line is terminated at both ends with the same voltage.d2

›46.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d2

›47.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d2

›48.↳ 38A signal transmitting system according to claim 38, further comprising:na second daughter board comprising:na second driver to output a signal;a secon…d2+6

›49.↳ 48A signal transmitting system according to claim 48,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d3

›50.↳ 48A signal transmitting system according to claim 48,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d3

›51.↳ 48A signal transmitting system according to claim 48,nwherein a value of a supply voltage supplied to the signal transmitting system, an output characte…d3

›52.↳ 48A signal transmitting system according to claim 48,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›53.↳ 48A signal transmitting system according to claim 48,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›54.↳ 48A signal transmitting system according to claim 48,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›55.↳ 38A signal transmitting system according to claim 38,nwherein the first resistor has a value capable of reducing repetitive reflections.d2

›56.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector to connect the mother board and the fir…+16

›57.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor has a value capable of reducing an impedance difference between the mai…d2

›58.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›59.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›60.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›61.↳ 56A signal transmitting system according to claim 56,nwherein the impedance of the main transmission line is lower than the impedance of the first trans…d2

›62.↳ 56A signal transmitting system according to claim 56,nwherein the main transmission line is terminated at only one end.d2

›63.↳ 56A signal transmitting system according to claim 56,nwherein the main transmission line is terminated at both ends with the same voltage.d2

›64.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d2

›65.↳ 56A signal transmitting system according to claim 56,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d2

›66.↳ 56A signal transmitting system according to claim 56, further comprising:na second daughter board comprising:nthe second driver to output a signal;a sec…d2+5

›67.↳ 66A signal transmitting system according to claim 66,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d3

›68.↳ 66A signal transmitting system according to claim 66,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d3

›69.↳ 66A signal transmitting system according to claim 66,nwherein a value of a supply voltage supplied to the signal transmitting system, an output characte…d3

›70.↳ 66A signal transmitting system according to claim 66,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›71.↳ 66A signal transmitting system according to claim 66,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›72.↳ 56A signal transmitting system according to claim 56, wherein the first resistor has a value capable of reducing repetitive reflections.d2

›73.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector adapted to connect the mother board and…+16

›74.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor has a value capable of reducing an impedance difference between the mai…d2

›75.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›76.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›77.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›78.↳ 73A signal transmitting system according to claim 73,nwherein the impedance of the main transmission line is lower than the impedance of the first trans…d2

›79.↳ 73A signal transmitting system according to claim 73,nwherein the main transmission line is terminated at only one end.d2

›80.↳ 73A signal transmitting system according to claim 73,nwherein the main transmission line is terminated at both ends with the same voltage.d2

›81.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d2

›82.↳ 73A signal transmitting system according to claim 73,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d2

›83.↳ 73A signal transmitting system according to claim 73, further comprising:na second daughter board comprising:nthe second driver to output a signal;a sec…d2+5

›84.↳ 83A signal transmitting system according to claim 83,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d3

›85.↳ 83A signal transmitting system according to claim 83,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d3

›86.↳ 83A signal transmitting system according to claim 83,nwherein a value of a supply voltage supplied to the signal transmitting system, an output characte…d3

›87.↳ 83A signal transmitting system according to claim 83,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›88.↳ 83A signal transmitting system according to claim 83,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d3

›89.↳ 73A signal transmitting system according to claim 73, wherein the first resistor has a value capable of reducing repetitive reflections.d2

›90.independentA signal transmitting system including a mother board and a first daughter board comprising:na first connector adapted to connect the mother board and…+16

›91.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor has a value capable of reducing an impedance difference between the mai…d2

›92.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›93.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›94.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor is capable of reducing reflections, in the first transmission line caus…d2

›95.↳ 90A signal transmitting system according to claim 90,nwherein the impedance of the main transmission line is lower than the impedance of the first trans…d2

›96.↳ 90A signal transmitting system according to claim 90,nwherein the main transmission line is terminated at only one end.d2

›97.↳ 90A signal transmitting system according to claim 90wherein the main transmission line is terminated at both ends with the same voltage.d2

›98.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor has a resistance value substantially equal to a value derived by subtra…d2

›99.↳ 90A signal transmitting system according to claim 90,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the va…d2

›100.↳ 90A signal transmitting system according to claim 90, further comprising:na second daughter board comprising:nthe second driver to output a signal;a sec…d2+5

›101.↳ 100A signal transmitting system according to claim 100,nwherein the first resistor has a resistance value substantially equal to a value derived by subtr…d3

›102.↳ 100A signal transmitting system according to claim 100,nwherein the first resistor has a resistance value in a range from 0.5 times to 1.5 times of the v…d3

›103.↳ 100A signal transmitting system according to claim 100,nwherein a value of a supply voltage supplied to the signal transmitting system, an output charact…d3

›104.↳ 100A signal transmitting system according to claim 100,nwherein the first resistor is capable of reducing reflections, in the first transmission line cau…d3

›105.↳ 100A signal transmitting system according to claim 100,nwherein the first resistor is capable of reducing reflections, in the first transmission line cau…d3

›106.↳ 90A signal transmitting system according to claim 90, wherein the first resistor has a value capable of reducing repetitive reflections.d2

Classifications

3 codes

IPC · International Patent Classification

Section H — Electricity

H03K19/003

USPC · US Patent Classification

326/30326/86

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James Cho

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Type	Document	Date
related publication	US 20090015289 A1	15 Jan 2009

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