1. A read signal processor comprising:
a sample-hold unit that sample-holds a designated range of each pixel of a sensor output signal for each color with respect to output from a color linear image sensor corresponding to three colors, and outputs a sample-held signal corresponding to each of the colors;
an amplifying unit that amplifies the sample-held signals based on a set gain, and outputs an amplified signal corresponding to each of the colors;
a converting unit that analog-digital converts the amplified signals to obtain digital data for each of the colors; and
an output unit that serializes a plurality of bits of the digital data for each of the colors to obtain a plurality of serial signals, converts the serial signals to a plurality of low-amplitude differential signals, and outputs serial low-amplitude differential signals.
2. The read signal processor according to claim 1, wherein the output unit n-multiplexes the digital data for each of the colors with regard to time and transmits the data at an n-fold data rate.
3. The read signal processor according to claim 2, wherein the output unit serializes the digital data for each of the color and a clock that corresponds to a data rate of the digital data for each of the colors to obtain a plurality of serial signals, converts the serial signals to a plurality of low-amplitude differential signals, and outputs the serial low-amplitude differential signals.
4. The read signal processor according to claim 1, wherein the output unit separates the digital data for each of the colors into n plural-bit groups, sequentially converts the bit groups to time-division data, and transmits the time-division data at an n-fold data rate as the serial low-amplitude differential signals.
5. The read signal processor according to claim 4, wherein the output unit converts a latch clock or an identification signal of each bit group of the digital data for each of the colors that is separated into n plural-bit groups to low-amplitude differential signals with digital data for each color and outputs resulting signals as the serial low-amplitude differential signals.
6. The read signal processor according to claim 1, further comprising a separating unit that separates the digital data for each of the colors to plural bit groups and sequentially performs multiple-bit parallel output in time division.
7. The read signal processor according to claim 6, wherein the separating unit outputs digital data that is separated into plural bit groups for each of the colors and is sequentially subjected to a multiple-bit parallel output in time division with a latch clock or an identification signal that corresponds to each of the bit groups.
8. The read signal processor according to claim 6, wherein output terminals are used in common partly or entirely for a plurality of serial low-amplitude differential signals, for multiple-bit parallel output, and for clock output in common partly or entirely.
9. A read signal processor according to claim 1, wherein the read signal processor is an integrated circuit.
10. An image reading apparatus comprising:
the read signal processor according to claim 1.
11. An image forming apparatus comprising:
the image reading apparatus according to claim 10.
12. A read signal processor comprising:
a sample-hold unit that sample-holds a designated range of each pixel of a sensor output signal for each color with respect to output from a color linear image sensor corresponding to three colors, and outputs a sample-held signal corresponding to each of the colors;
an amplifying unit that amplifies the sample-held signals based on a set gain, and outputs an amplified signal corresponding to each of the colors;
a converting unit that analog-digital converts the amplified signals to obtain digital data for each of the colors; and
a separating unit that separates the digital data for each of the colors into a plurality of bit groups and sequentially performs multiple-bit parallel output in time division.
13. The read signal processor according to claim 12, wherein the separating unit outputs digital data that is separated into plural bit groups for each of the colors and is sequentially subjected to a multiple-bit parallel output in time division with a latch clock or an identification signal that corresponds to each of the bit groups.
14. A read signal processor according to claim 12, wherein the read signal processor is an integrated circuit.
15. An image reading apparatus comprising:
the read signal processor according to claim 12.
16. An image forming apparatus comprising:
the image reading apparatus according to claim 15.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A kit for installing an underground gas piping system, the kit comprising:
a length of flexible piping positioned within a gas-impermeable protective conduit; and, a plurality of sealing members for sealing the protective conduit to the flexible piping.
2. The kit of claim 1 wherein:
said flexible piping is corrugated stainless steel tubing.
3. The kit of claim 1 wherein:
said sealing members are heat shrinkable members.
4. The kit of claim 1 wherein:
said protective conduit is made from polyethylene.
5. The kit of claim 1 further comprising:
a vent member for venting the protective conduit.
6. The kit of claim 1 wherein:
said vent member is a tee joint.
7. A method of installing an underground gas piping system, the method comprising:
obtaining a flexible piping positioned with a gas-impermeable protective conduit;
cutting the protective conduit to expose the flexible piping; and
sealing the gas-impermeable protective conduit to the flexible piping using a sealing member.
8. The method of claim 7 wherein:
the sealing member is attached to the flexible piping.
9. The method of claim 7 wherein:
the sealing member is attached to a jacket of the flexible piping.
10. The method of claim 7 further comprising:
installing a vent member to the protective conduit.
11. The method of claim 10 wherein:
said vent member is a tee joint.
12. The method of claim 10 wherein:
sealing the protective conduit to the flexible piping comprises sealing the vent member to the flexible piping.
13. The method of claim 10 further comprising:
installing an extension protective conduit to said vent member.
14. The method of claim 13 wherein:
sealing the protective conduit to the flexible piping comprises sealing the extension protective conduit to the flexible piping.