Enhanced bandwidth data encoding method

• US 20060061559A1
• Filed: 08/10/2005
• Published: 03/23/2006
• Est. Priority Date: 09/17/2004
• Status: Active Grant

• Current Assignee: Uni-Pixel Displays Incorporated (Uni-Pixel Incorporated)
• Original Assignee: Uni-Pixel Displays Incorporated (Uni-Pixel Incorporated)
• Inventors: King, Carey
• Granted Patent: US 7,564,874 B2
• Time in Patent Office: Days
• US Class Current: 345/204
• CPC Class Codes: G09G 3/204 the sub-frames being organized in consecutive sub-frame groups
• CPC Class Codes: G09G 3/2081 with combination of amplitude modulation and time modulation space and time error diffusion G09G3/2066
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

The encoding and processing of data for many applications can be rendered more tractable when the encoding method can independently manipulate two or more parameters that result, by conjunction, in an accurately posted data value precisely where it is expected. From a data standpoint, this would entail dividing an n-width digital word into separate fractional words and processing the subsets consecutively and independently, where the distinction between these fractional words has an explicit bearing on the information being borne. For example, an 8-bit word can be decomposed into two 4-bit words, half of which are processed while the transmission source is at full intensity, the other half being processed while the transmission source is at 1/16^th intensity, thereby recovering the entire dynamic range of the original 8-bit word while reducing the bandwidth and cycle speed necessary for the transducer to be driven by the input signal.

Claims

1. A method of encoding a data set for transmission to a user or a reading system via an n-dimensional array, said method comprising:

the data set composed of one or more subsets of data that fill an informational content of the array;

presenting multiple data subsets sequentially in time to complete the transmission of the data set;

loading the data subsets to array elements that have a discrete number of states; and

one or more transmission sources that dictate when a data subset is read or interpreted by the user or the reading system where transmission sources are independently controlled from the data set and data subsets.

2. The method of claim 1 where the array elements have independent control lines.

3. The method of claim 2 where each transmission source is continuously ON for a single period of time during transmission of a single data set.

4. The method of claim 2 where the transmission sources light sources vary in output intensity level at any given time they are ON.

5. The method of claim 2 where the transmission sources are controlled ON and OFF via PWM.

6. The method of claim 2 where the transmission sources are OFF while the array elements are changing states.

7. The method of claim 6 where the transmission sources are PWM in a binary weighted scheme.

8. The method of claim 7 where a technique of bit splitting is employed to break up a total time for which the most significant bits are transmitted into smaller time increments.

9. The method of claim 1 where the array elements are controlled using a number of control lines equal to a sum of the lengths of the array in each dimension.

10. The method of claim 9 where each transmission source is continuously ON for a single period of time during transmission of a single data set.

11. The method of claim 9 where the transmission sources light sources vary in output intensity level at any given time they are ON.

12. The method of claim 9 where the transmission sources are controlled ON and OFF via PWM.

13. The method of claim 9 where the transmission sources are OFF while the array elements are changing states.

14. The method of claim 13 where the transmission sources are PWM in a binary weighted scheme.

15. The method of claim 14 where a technique of bit splitting is employed to break up a total time for which the most significant bits are transmitted into smaller time increments.