What is claimed is:
1. A process for forming a color filter array layer on a transparent surface, comprising the step of applying a water-borne solid-particle dispersion of randomly disposed colored beads of a water-immiscible synthetic polymer to the surface.
2. The process of claim 1 wherein the beads are colored prior to application by contacting an aqueous suspension of the beads with an organic soluble dye in a water miscible solvent for the dye.
3. The process of claim 1 in which a gelation material is added to the bead dispersion prior to contacting the water-borne solid-particle dispersion of the beads with the surface.
4. The process of claim 3 in which the water-borne solid-particle dispersion of the beads containing a gelation material gels prior to drying of the filter layer.
5. The process of claim 1 wherein said beads are composed of a polymer containing substantially no crosslinking.
6. The process of claim 1 wherein said beads are composed of a cross-linked polymer.
7. The process of claim 1 in which the beads are formed by an emulsion polymerization or a limited coalescence process.
8. The process of claim 1 wherein the film is not exposed to a pressure of 2 kgcm 2 or more.
9. The process of claim 1 wherein the surface is part of a photographic film comprising (1) a support and (2) a light sensitive layer.
10. The process of claim 9 wherein the dispersion is applied to a surface of a light sensitive film wherein the surface is farther from the support than the light sensitive layer, so that a significant compressive force cannot be applied to the surface during manufacture without causing damage to the light sensitive layer.
11. The process of claim 9 wherein the light-sensitive layer is a silver halide layer.
12. The process of claim 9 wherein the filter layer components are selected so that the filter layer is water-permeable.
13. The process of 9 wherein the dispersion is applied to a surface of a light sensitive film wherein the surface is farther from the light sensitive layer than the support.
14. The process of claim 1 wherein the beads have an average equivalent circular diameter of 3-15 micrometers.
15. The process of claim 1 wherein the dispersion additionally contains neutral nano-particles having an average particle size in the range of 0.01 to 0.3 microns.
16. The process of claim 1 wherein the average diameter of the beads is greater than or equal to the average space between the beads.
17. The process of claim 1 wherein the percentage overlap is less than 20%.
18. The process of claim 6 wherein the beads contain less than 30% cross linker.
19. The process of claim 1 wherein the surface to which the beads are applied enhances uniformity of bead coating.
20. The process of claim 1 comprising the additional step of applying a protective overcoat to the CFA.
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 method for generating precoder data, comprising:
obtaining transmit power data indicative of a transmit power of a plurality of multiple-inputmultiple-output signals;
obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-inputmultiple-output signals;
obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel;
constraining one or more system performance parameters; and
determining first and second precoder diagonal values based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters.
2. The method of claim 1, further comprising:
receiving the plurality of multiple-inputmultiple-output signals from a remote device over the wireless channel,
wherein the obtaining of the signal quality data is performed by detecting the signal quality data based on the plurality of multiple-inputmultiple-output signals, and
wherein the obtaining of the channel data is performed by detecting the channel data based on the plurality of multiple-inputmultiple-output signals.
3. The method of claim 1, wherein the constraining of the one or more system performance parameters is performed by constraining signal-to-noise-plus-interference ratios of two symbol pairs contained in the plurality of multiple-inputmultiple-output signals.
4. The method of claim 3, wherein the constraining of the one or more system performance parameters is performed by equating the signal-to-noise-plus-interference ratios of the two symbol pairs contained in the plurality of multiple-inputmultiple-output signals.
5. The method of claim 1, wherein during the determining operation, the first and second precoder diagonal values are selected from a limited set of possible values.
6. The method of claim 1, wherein during the determining operation, the first and second precoder diagonal values are selected from a set constellation of vector values.
7. The method of claim 1, further comprising transmitting the first and second precoder diagonal values to a remote device.
8. The method of claim 1, wherein the signal quality data comprises the noise variance of the plurality of multiple-inputmultiple-output signals.
9. The method of claim 1, further comprising performing minimum mean square estimation operation successive interference cancellation operation on the plurality of multiple-inputmultiple-output signals.
10.-15. (canceled)
16. A multiple-inputmultiple-output receiver, comprising:
a receiver circuit configured to receive a plurality of multiple-inputmultiple-output signals from a remote device over a wireless channel, the wireless channel including a plurality of channel paths;
a channel analyzing circuit configured to detect signal quality data and channel data from the plurality of multiple-inputmultiple-output signals, the signal quality data including at least one measure of a quality of the plurality of multiple-inputmultiple-output signals, and the channel data including a measure of respective channel properties of each of the plurality of channel paths; and
a precoder diagonal value calculator configured to determine first and second precoder diagonal values based on the signal quality data, the channel data, a transmit power of the plurality of multiple-inputmultiple-output signals, and one or more constrained system performance parameters.
17. The multiple-inputmultiple-output receiver of claim 16, wherein the multiple-inputmultiple-output receiver is a part of one of a (3\xd7L) multiple-inputmultiple-output system and a (4\xd7L) multiple-inputmultiple-output system, and wherein L is an integer greater than or equal to 2.
18. The multiple-inputmultiple-output receiver of claim 16, wherein the signal quality data comprises the noise variance of the plurality of multiple-inputmultiple-output signals.
19. The multiple-inputmultiple-output receiver of claim 16, wherein the receiver is implemented using an integrated circuit.
20. The multiple-inputmultiple-output receiver of claim 16, wherein the precoder diagonal value calculator determines the first and second precoder diagonal values by selecting them from a limited set of possible scalar or vector values.
21. The multiple-inputmultiple-output receiver of claim 16, wherein the precoder diagonal value calculator determines the first and second precoder diagonal values by generating a vector value.
22. The multiple-inputmultiple-output receiver of claim 16, wherein the one or more constrained system performance parameters are signal-to-noise-plus-interference ratios of two symbol pairs contained in the plurality of multiple-inputmultiple-output signals.
23. The multiple-inputmultiple-output receiver of claim 16, wherein the receiver is further configured to perform a minimum mean square estimation successive interference cancellation process on the plurality of multiple-inputmultiple-output signals from the remote device.
24. A wireless device, comprising:
a wireless interface adapted to receive a plurality of multiple-inputmultiple-output (MIMO) signals from a transmitting device over a wireless channel;
a first module configured to obtain channel data with respect to a wireless channel, the channel data comprising information based on one or more respective channel parameters of each of a plurality of channel paths in the wireless channel; and
a second module configured to provide the obtained channel data to the transmitting device;
wherein the provided channel data is configured to enable the transmitting device to determine a first and second precoder diagonal values therefrom.
25. The wireless device of claim 24, wherein the channel data comprises the noise variance of the plurality of MIMO signals.
26. The wireless device of claim 24, wherein first module is adapted to obtain channel data based on a known series of bits.
27. A method for generating precoder data for use in a wireless apparatus, the method comprising:
obtaining transmit power data relating to a transmit power of a plurality of multiple-inputmultiple-output signals;
obtaining signal quality data including at least one measure of a quality of the plurality of multiple-inputmultiple-output signals;
obtaining channel data related to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel; and
determining at least one precoder diagonal value based at least on the signal quality data, the transmit power data, and the channel data.
28. Apparatus capable of receiving multiple-inputmultiple-output signals, the apparatus comprising:
a receiver circuit configured to receive a plurality of multiple-inputmultiple-output signals from a remote device over a wireless channel, the wireless channel including a plurality of channel paths;
a channel analyzing circuit configured to detect signal quality data and channel data from the plurality of multiple-inputmultiple-output signals, the signal quality data including at least one measure of a quality of the plurality of multiple-inputmultiple-output signals, and the channel data including at least one measure of respective channel properties of each of the plurality of channel paths; and
apparatus in communication with the channel analyzing circuit and configured to determine first and second precoder values based at least in part on the signal quality data, the channel data, and a transmit power of the plurality of multiple-inputmultiple-output signals.