 Optical scanning apparatus with control circuit for optimizing the operating range of an A/D converter |
| It is an object of the invention to provide apparatus which optimizes the operating range of the A/D... |
|
| Disc-shaped optically readable record carrier used as a data storage medium |
| What is claimed is: 1. An improved disc-shaped record carrier, provided with substantially ... |
|
| System for reproducing pulse time modulated wave forms stored along a diffractive track |
| The present invention relates to a material data-carrier or record designed to be read out ... |
|
| Automatic guide-channel mapping method of a VCR |
| It is an object of the present invention to provide an automatic guide-channel mapping method of a V... |
|
| Signal recording system using memory for audio signal |
| An object of the invention is to eliminate the above-described problems. Another object of the ... |
|
| Technique for automatically centering a lightguide fiber in a coating |
| The instant invention overcomes the foregoing problem of automatically centering a lightguide fiber ... |
|
| Still-image video signal processing circuit |
| In view of the aforesaid drawback of the conventional still-image video signal processing circuit, ... |
|
| Memory address and display control apparatus for high definition television |
| The present invention has been conceived in view of the above problem, and it is an object of the ... |
|
|
Picture image information band compression and transmission system
| Details |
Inventors: Sakamoto, Masaharu; Aoki, Masahiro;
Assignee: Olympus Optical Company Limited (Tokyo, JA)
Primary Examiner: Griffin; Robert L.
Assistant Examiner: Coles; Edward L.
Attorney, Agent or Firm: Haseltine, Lake & Waters
A picture image information band compression and transmission process includes the steps of providing one set of three scanning lines making information of the first scanning line of each one set as an estimation scanning line, estimating a picture element to be estimated by four consecutive picture elements, preparing estimated picture image informations, and translating the estimation reference scanning line and two estimated picture image information into run length codes and into mode codes, respectively, and compressing and transmitting the run length codes. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A picture image information band compression and transmission process, comprising the steps of providing one set of three scanning lines a b c, making information of the first scanning line a of each one set a b c as an estimation scanning line, estimating a picture element e to be estimated by four consecutive picture elements a, b, c, d and preparing estimated picture image informations b ', c ' and translating estimated picture image information a ' showing as an estimation reference scanning line and both two estimated picture image information into run length codes c a " and into a mode code c b ", respectively, and compressing and transmitting said run length codes c a " and c b".
2.
A picture image information band compression and transmission process as claimed in claim 1, wherein "white" and "black" information are predetermined as "0" and "1" information signals, codes are given by continuous information signals 0, 00, 000 in Table 2 or 1, 11, 111 in Table 3 up to a given number 3 of run length, at those numbers of run length which are larger than said given number 3 of run length, values from which is subtracted "said given number 3 of run length plus 1" is translated into a binary code and divided into a given number of bits (2 bits), information signals corresponding to said white and black information are added to the top of each said divided unit, and said translation into run length code is effected by adding bits representing said given number (3) of the run length to the top of the code.
3.
A picture image information band compression and transmission process as claimed in claim 1, wherein said estimated picture image information b ', c ' of said plurality of scanning lines b , c are translated into a mode code with respect to rows of picture elements adjacent to the auxiliary scanning direction, and said plurality of scanning lines of said estimated picture image information b ', c ' are translated into one row of transmitting codes c b "
|
| Related patents |
|
|
Contrast control wherein reference pulse detection occurs every other line period and wherein clamping occurs in remaining line periods
Accordingly, it is an object of the present invention to provide a contrast control circuit capable of controlling contrast even if the duration of the back porch is ...
|
|
|
Dish antenna structures and hydraulic control of the orientation thereof
OF THE ILLUSTRATED EMBODIMENTS The dish antenna 10 illustrated in FIGS. 1 and 2 was designed by the present inventors and has been assembled at The Australian National U...
|
|
|
Image display system
It is an object of the present invention to solve the above-described problems. It is another object of the present invention to provide an inexpensive and small-sized ...
|
|
|
Optical record carrier inscribed with read-out control data and apparatus for reading such record carrier in conformity with such control data
It is an object of the invention to provide means enabling the signal-processing circuit to be adapted simply to the strength of the applied signals. To this end, in ...
|
|
|
Electronic time compressor/expander utilizing magnetic storage
OF THE INVENTION My co-pending application, Ser. No. 367,618, filed June 6, 1973, now U.S. Pat. No. 3,860,760, which application is hereby incorporated by reference, ...
|
|
|
Disc drive with rotary access mechanism
The invention claimed is: 1. A disc drive apparatus, comprising a baseplate, means for supporting a plurality of recording discs arrayed in packs on the baseplate for ...
|
|
|
Optical head
The present invention has for its object to provide a novel and useful optical head in which an incident angle to an optical surface of the critical angle prism can be ...
|
|
|
Method and system for data transmission over a network link between computers with the ability to withstand temporary interruptions
Broadly speaking, the invention relates to a data transfer technique in which lossy connections or interrupted network links neither prevent data transfer nor ...
|
|
|
Electric water heater control
OF THE INVENTION A preferred embodiment of the invention will now be described with reference to the drawings in which: FIG. 1 is a schematic diagram of the present ...
|
|
|
Unlocking system for use with cards
An object of the present invention is to provide an unlocking system for use with cards which can be installed inexpensively without the necessity of providing ...
|
|
|
TV Signal 
