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In performing an light emitting operation using a plurality of semiconductor light-emitting devices, these semiconductor light-emitting devices are lighted up such that the driving current is lessened and the life time of the devices is prevented from being shortened and lights can be emitted to a r

In performing an light emitting operation using a plurality of semiconductor light-emitting devices, these semiconductor light-emitting devices are lighted up such that the driving current is lessened and the life time of the devices is prevented from being shortened and lights can be emitted to a remote site without reducing an amount of lights. Semiconductor laser devices 23a to 23c, which emit lights through independent lenses 25a to 25c, are connected in series to each other and connected to a signal generating circuit 24, serving as a power supply, so as to perform pulse lighting, whereby making it possible to light up three semiconductor laser devices simultaneously at a driving current corresponding to one semiconductor laser device. A package of semiconductor laser devices 23a to 23c comprises three lead terminals, and an electrical connection to two lead terminals, which are electrically insulated from a metallic base, is established. If a light collection point P is positioned in the midway of the detection distance range, the shifting quantity of the laser beams is minimized over substantially the entire area so that the amount of lights can be suppressed.

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In performing an light emitting operation using a plurality of semiconductor light-emitting devices, these semiconductor light-emitting devices are lighted up such that the driving current is lessened and the life time of the devices is prevented from being shortened and lights can be emitted to a r

In performing an light emitting operation using a plurality of semiconductor light-emitting devices, these semiconductor light-emitting devices are lighted up such that the driving current is lessened and the life time of the devices is prevented from being shortened and lights can be emitted to a remote site without reducing an amount of lights. Semiconductor laser devices 23a to 23c, which emit lights through independent lenses 25a to 25c, are connected in series to each other and connected to a signal generating circuit 24, serving as a power supply, so as to perform pulse lighting, whereby making it possible to light up three semiconductor laser devices simultaneously at a driving current corresponding to one semiconductor laser device. A package of semiconductor laser devices 23a to 23c comprises three lead terminals, and an electrical connection to two lead terminals, which are electrically insulated from a metallic base, is established. If a light collection point P is positioned in the midway of the detection distance range, the shifting quantity of the laser beams is minimized over substantially the entire area so that the amount of lights can be suppressed. from the signal path; and at least one other wire of the computer system, wherein the at least one wire is disposed at second distance from the signal path; wherein the first distance and the second distance are dependent on a probability of a value of a signal on the signal path being at a specific value. 2. The computer system of claim 1, wherein the first distance is less than the second distance when the probability of the value of the signal being at a value closer to the first wire is greater than the probability of the value of the signal being at a value closer to the second wire. 3. The computer system of claim 1, wherein the second distance is less than the first distance when the probability of the value of the signal being at a value closer to the second wire is greater than the probability of the value of the signal being at a value closer to the first wire. 4. The computer system of claim 1, wherein the first wire and the second wire are operatively connected to a power supply. 5. The computer system of claim 1, wherein the signal path is operatively connected to chip logic. 6. An integrated circuit, comprising: a first node; a signal, wherein the first node is positioned at a first distance from the signal; and at least one other node, wherein the at least one node is positioned at a second distance from the signal; wherein the signal is asymmetrically shielded by the first node and the at least one other node according to the first distance and the second distance dependent on a probability of a value of the signal being at a specific value. 7. The integrated circuit of claim 6, wherein the first distance is determined by a probability of the signal being at a value of the first node. 8. The integrated circuit of claim 6, wherein the second distance is determined by a probability of the signal being at a value of the second node. 9. The integrated circuit of claim 6, wherein the first node and second node are operatively connected to a power supply. 10. The integrated circuit of claim 6, wherein the signal is an output from a logic component on the integrated circuit. 11. A method for increasing decoupling capacitance in an integrated circuit, comprising: disposing a first wire at a first distance from a signal; disposing a second wire at a second distance from a signal; and asymmetrically shielding the signal by the first wire and the second wire, wherein the first distance and second distance are determined by a probability of the signal being at a specific value. 12. The method of claim 11, wherein the first distance is less than the second distance when the probability of the signal being at a value closer to the first wire is greater than the probability of the signal being at a value closer to the second wire. 13. The method of claim 11, wherein the second distance is less than the first distance when the probability of the signal being at a value closer to the second wire is greater than the probability of the value of the signal being at a value closer to the first wire. 14. The method of claim 11, wherein the first wire and the second wire are operatively connected to a power supply. 15. The method of claim 11, wherein the signal is operatively connected to a logic component. 16. A method for asymmetrically shielding a signal, comprising: determining a first probability of a signal being at a first value; determining a second probability of the signal being at a second value; positioning a first wire at a first distance from the signal; and positioning a second wire at a second distance from the signal; wherein the first distance is dependent on the first probability and the second distance is dependent on the second probability. erm signals (PT's) therefrom. Part or all of the macrocell's local 5 PT's may be used for generating a local sum-of-products (SoP) signal in a local, first-level ORring operation. Additionally SoP's generated in neighboring macrocell sections may be selectively and incrementally cascaded (cross-laced) for supplemental summing into the local SoP signal. SoP signals of neighboring sections may be further selected in a sums sharing array for second level summing. The combination of the first-level cascading (cross-lacing) and second-level sums sharing provides a wide range of programmably selectable granulations including that of having relatively fast generation of a sum of just a few PT's (e.g., ≤5 PT's) to having slower generation of sums of a much larger number of PT's (e.g., ≤160 PT's).