1. A method for improving digital-signal-generated grayscale resolution of a monochrome visual display unit, to which digital signals from an image source are supplied over n-bit-wide RGB channels, comprising:
generating with an encoding device of the image source n-bit-wide RGB color signals for transmission of an input m-bit-wide grayscale signal over the RGB channels, m being larger than n, the encoding device being configured to form each of the RGB color signals from the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal, such that the bit values of the n\u22121 bit locations of each of the R color signal, the G color signal and the B color signal match to the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal, and that the bit value of the only remaining one bit location of each of the R color signal, the G color signal, and the B color signal match to the bit value of only one of the remaining bit values of m\u2212(n\u22121) bit locations (D2, D1, D0) of the input m-bit-wide grayscale signal, wherein all of the remaining bit values m\u2212(n\u22121) bit locations (D2, D1, D0) of the input m-bit-wide grayscale signal are used among each of the R color signal, the G color signal, and the B color signal;
generating with a decoding device of the monochrome visual display unit an output m-bit-wide grayscale signal from the received n-bit-wide RGB color signals, the decoding device being configured to form bit values for n\u22121 bit locations of the output m-bit-wide grayscale signal from the bit values of n\u22121 bit locations of the n-bit-wide RGB color signals according to a processing rule, and to supplement these n\u22121 bit locations by the respective bit value of the remaining bit locations of the respective n-bit-wide RGB color signal; and
displaying with the monochrome visual display unit the output m-bit-wide grayscale signal.
2. The method as claimed in claim 1,
wherein the decoding device forms reference numbers (FR, FG, FB) from the respective bit values of the n\u22121 bit locations of the n-bit-wide RGB color signals according to the processing rule,
wherein the decoding device determines a weighted reference number from the reference numbers (FR, FG, FB), and converts the weighted reference number into a binary number, the bit combination of which forms the bit values of the n\u22121 bit locations (D9, D8, . . . , D3) of the output m-bit-wide grayscale signal.
3. The method as claimed in claim 2, wherein the reference numbers (FR, FG, FB) are decimal numbers, from which the decoding device determines a weighted decimal number (Y) using the formula:
Y=a*FR+b*FG+c*FB;
where a+b+c=1.
4. An arrangement improving digital-signal-generated grayscale resolution, comprising:
a monochrome visual display unit;
an image source, which supplies digital signals to the monochrome visual display unit over n-bit-wide RGB channels;
an encoding device of the image source generating n-bit-wide RGB color signals for transmission of an input m-bit-wide grayscale signal over the RGB channels, m being larger than n, the encoding device being configured to form each of the RGB color signals from the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal, such that the bit values of the n\u22121 bit locations of each of the R color signal, the G color signal and the B color signal match to the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal, and that the bit value of the only remaining one bit location of each of the R color signal, the G color signal, and the B color signal match to the bit value of only one of the remaining bit values of m\u2212(n\u22121) bit locations (D2, D1, D0) of the input m-bit-wide grayscale signal, wherein all of the remaining bit values m\u2212(n\u22121) bit locations (D2, D1, D0) of the input m-bit-wide grayscale signal are used among each of the R color signal, the G color signal, and the B color signal; and
a decoding device of the monochrome visual display unit for generating an output m-bit-wide grayscale signal from the received n-bit-wide RGB color signals, the decoding device being configured to form bit values for n\u22121 bit locations of the output m-bit-wide grayscale signal from the bit values of n\u22121 bit locations of the n-bit-wide RGB color signals according to a processing rule, and to supplement these n\u22121 bit locations by the respective bit value of the remaining bit locations of the respective n-bit-wide RGB color signal, wherein the monochrome visual display unit displays the output m-bit-wide grayscale signal.
5. The arrangement as claimed in claim 4,
wherein the decoding device forms reference numbers (FR, FG, FB) each from the respective bit values of the n\u22121 bit locations of the n-bit-wide RGB color signals according to the processing rule,
wherein the decoding device determines a the weighted reference number from the reference numbers (FR, FG, FB) and converts the weighted reference number into a binary number, the bit combination of which forms the bit values of the n\u22121 bit locations (D9, D8, . . . , D3) of the output m-bit-wide grayscale signal.
6. The arrangement as claimed in claim 5, wherein the reference numbers (FR, FG, FB) are decimal numbers, from which the decoding device determines a weighted decimal number using the formula:
Y=a*FR+b*FG+c*FB;
where a+b+c=1.
7. An arrangement for transmitting a grayscale signal and a color signal comprising:
an image source;
a monochrome visual display unit; and
RGB channels;
wherein the image source comprises an application program for generating a grayscale signal, an application program for generating a color signal, and an encoding device that generates n-bit wide RGB color signals for transmission of an input m-bit-wide grayscale signal over the RGB channels, m being larger than n, the encoding device being configured to form each of the RGB color signals from the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal such that the bit values of the n\u22121 bit locations of each of the R color signal the G color signal and the B color signal match to the bit values of n\u22121 bit locations (D9, D8, . . . , D3) of the input m-bit-wide grayscale signal and that the bit value of the only remaining one bit location of each of the R color signal the G color signal and the B color signal match to the bit value of only one of the remaining bit values of m\u2212(n\u22121) bit locations (D2, D1, D0) of the input m-bit-wide grayscale signal wherein all of the remaining bit values m\u2212(n\u22121) bit locations (D2, D1, DO) of the input m-bit-wide grayscale signal are used among each of the R color signal the G color signal and the B color signal;
wherein the monochrome visual display unit comprises a decoding device that generates an output m-bit-wide grayscale signal from the received n-bit wide RGB color signals, the decoding device being configured to form bit values for n\u22121 bit locations of the output m-bit-wide grayscale signal from the bit values of n\u22121 bit locations of the n-bit-wide RGB color signals according to a processing rule, and to supplement these n\u22121 bit locations by the respective bit value of the remaining bit locations of the respective n-bit-wide RGB color signal;
wherein the input m-bit-wide grayscale signal is encoded and transmitted from the image source to the monochrome visual display unit via the RGB channels with the bit width of the color signal, and
wherein the output m-bit-wide grayscale signal is decoded after a transmission via the RGB channels by the decoding device and converted to a decoded signal having the bit width of the output m-bit-wide grayscale signal, and wherein the monochrome visual display unit displays the decoded grayscale signal.
8. The arrangement as claimed in claim 7, wherein the bit width of the grayscale signal is 10 bit, and
wherein the bit width of the color signal is 8 bit.
9. The arrangement as claimed in claim 7, wherein a bit width of the RGB channels is 8 bit.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A school bus seat, comprising: a seat back, support legs, a seat bottom and a one-piece integral envelope cushion completely residing over said seat back, said envelope cushion includes an integrally molded polyurethane foam having an elastomeric skin formed on the exterior thereof; said seat back is a sandwich composite, and includes an aisle-side bracket interconnecting one of said support legs and a window-side bracket interconnecting the other of said support legs by pins selected from the group consisting of hollow pentagonal, hexagonal, heptagonal and octagonal pins; wherein said sandwich composite seat back is adhesively secured to said brackets.
2. A school bus seat as claimed in claim 1 wherein a component of said school bus seat back is made by the following steps:
coating a mold with a spray elastomer;
inserting said component into said mold; and,
injecting urethane foam into said mold, said urethane adhering to said component and said elastomer.
3. A school bus seat as claimed in claim 1 wherein said seat back includes a superstructure; said seat back is made by the following steps:
coating a mold with a spray elastomer;
attaching the superstructure of said seat back to the seat back brackets;
inserting the seat back into the mold; and,
injecting urethane foam into the mold, said urethane adhering to said superstructure of said seat back, said elastomer, and said brackets.
4. A school bus seat, comprising: a seat back, support legs, a seat bottom and a one-piece integral envelope cushion completely residing over said seat back, said envelope cushion includes an integrally molded polyurethane foam having an elastomeric skin formed on the exterior thereof; said seat back is a sandwich composite, and includes an aisle-side bracket interconnecting one of said support legs and a window-side bracket interconnecting the other of said support legs by pins selected from the group consisting of hollow pentagonal, hexagonal, heptagonal and octagonal pins; wherein said sandwich composite seat back is ultrasonically welded to said brackets.
5. A school bus seat, comprising: pins, said pins having a cross-sectional shape selected from the group consisting of a pentagon, a hexagon, a heptagon and an octagon; first and second brackets each including an aperture selected correspondingly from the group consisting of a pentagon, a hexagon, a heptagon and an octagon; first and second supports including an aperture selected correspondingly from the group consisting of a pentagon, a hexagon, a heptagon and an octagon; said apertures in said brackets and said supports being formed in a fiber reinforced polymer, said apertures being devoid of knit lines; and, said pins reside in said apertures of said supports and said apertures of said brackets inhibiting rotation of said brackets with respect to said supports.
6. A school bus seat as claimed in claim 5 wherein a component of said school bus seat back is made by the following steps:
coating a mold with a spray elastomer;
inserting said component into said mold; and,
injecting urethane foam into said mold, said urethane adhering to said component and said elastomer.
7. A school bus seat as claimed in claim 5 wherein said seat back includes a superstructure; said seat back is made by the following steps:
coating a mold with a spray elastomer;
attaching the superstructure of said seat back to the brackets;
inserting the seat back into the mold; and,
injecting urethane foam into the mold, said urethane adhering to said superstructure of said seat back, said elastomer, and said brackets.
8. A school bus seat as claimed in claim 5 further comprising a seat back secured to said brackets.
9. A school bus seat as claimed in claim 8 wherein said seat back is adhesively secured to said brackets.
10. A school bus seat as claimed in claim 8 wherein said seat back is ultrasonically welded to said brackets.
11. A school bus seat as claimed in claim 8 wherein said seat back is bolted to said brackets.
12. A school bus seat as claimed in claim 8 further comprising an elastomeric skinned cushion integrally molded to said seat back and said brackets.
13. A school bus seat as claimed in claim 8 wherein said seat back is a solid reinforced polymer.
14. A school bus seat as claimed in claim 13 further comprising an elastomeric skinned cushion integrally molded to said solid reinforced polymer seat back and said brackets.
15. A school bus seat as claimed in claim 8 wherein said seat back is a sandwich composite.
16. A school bus seat as claimed in claim 15 further comprising an elastomeric skinned cushion integrally molded to said sandwich composite seat back and said brackets.
17. A school bus seat, comprising: a seat back, support legs, a seat bottom and a one-piece integral envelope cushion completely residing over said seat back, said envelope cushion includes an integrally molded polyurethane foam having an elastomeric skin formed on the exterior thereof; said seat back is a sandwich composite, and includes an aisle-side bracket interconnecting one of said support legs and a window-side bracket interconnecting the other of said support legs by pins selected from the group consisting of hollow pentagonal, hexagonal, heptagonal and octagonal pins; and said brackets are formed of a fiber reinforced polymer.
18. A school bus seat as claimed in claim 17 wherein said support legs are formed of a fiber reinforced polymer.
19. A school bus seat as claimed in claim 17 wherein said seat back includes a superstructure; said seat back is made by the following steps:
coating a mold with a spray elastomer;
attaching seat superstructure of said seat back to the seat back brackets;
inserting the seat back into said mold; and,
injecting urethane foam into said mold, said urethane adhering to said superstructure of said seat back, said elastomer, and said brackets.
20. A school bus seat as claimed in claim 17 wherein a component of said school bus seat back is made by the following steps:
coating a mold with a spray elastomer;
inserting said component into said mold; and,
injecting urethane foam into said mold, said urethane adhering to said component and said elastomer.