 Color synchronizing circuit |
| Briefly described, the present invention comprises a color synchronizing circuit including a phase ... |
|
| Speech scrambler |
| In view of the above shortcomings of the prior art, an object of the present invention is to ... |
|
| Vertical synchronizing pulse generating circuit |
| What we claim are: 1. A vertical synchronizing pulse generator comprising: a first vertical ... |
|
| High rate, bidirectional drive for a bipole stepping motor watch |
| I claim: 1. In a quartz analog wristwatch having a manually attached switch and having a bipole ... |
|
| Polymer core optical wave-guide and fabrication method thereof |
| An object of the present invention is to provide a polymer core optical wave-guide of which the ... |
|
| Apparatus for pole-mounting an optical fiber splice closure |
| What is claimed is: 1. A bracket for mounting a splice closure to a pole, the splice closure having ... |
|
| Dual format dual resolution scanner with off-axis beams |
| It is an object of the invention to provide a scanner capable of producing images with different ... |
|
| Integrated Electrooptic modulator and process for the production thereof |
| I claim: 1. An electrooptic modulator integrated on a substrate, comprising: a guide structure ... |
|
| Cable storage cartridge |
| One aspect of the present invention relates to a cable storage cartridge having a carriage frame ... |
|
| Positioning optical components and waveguides |
| Recent developments in the field of optical communication have lead to the more widespread use of ... |
|
|
Shift register
| Details |
Inventors: Yamada, Kunihiro;
Assignee: Ricoh Company, Ltd. (Tokyo, JP)
Primary Examiner: Popek; Joseph A.
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Fisher, Spivak, McClelland & Maier
A shift register of the type capable of performing shift operations by changing the access of a random access memory, which is capable of performing the operations at a high speed, with respect to the address for reading data and the output of a counter, the input to which is a clock pulse. In order to increase the operations of the shift register, the operation of the address is performed in a power form or each input data is written at two different addresses of the random access memory. |
|
DETAILED DESCRIPTION It is therefore an object of the present invention to provide a shift register which is made simple in mechanism and inexpensive by use of a RAM of great capacity and which is capable of performing high speed operations and stopping the supply of clocks, and from which the above-described drawbacks in the prior-art shift registers have been successfully eliminated.
In order to attain this object, an embodiment of a shift register according to the present invention comprises a Random Access Memory (RAM) with a capacity of more than 2.
sup.
k words, a k-bit counter which is counted down each time a clock pulse is input thereto and designates an address of the RAM in accordance with the counted value, at which address an input data is written, and an operation unit for adding the address indicated by the k-bit counter to the address of the shifted data to be read, making the added address the address of the data to be read by the RAM, thereby outputting the data which has been shifted by the number of steps corresponding to the number of clock pulses applied by that time, when a clock pulse is not input to the shift register.
Furthermore, in order to attain the above-mentioned object, another embodiment of a shift register according to the present invention comprises a RAM with a capacity of more than 2n words, a counter, an operation unit, a constant generation apparatus and a sequence control apparatus.
In this embodiment, when a clock pulse is input thereto, a constant 0 and a constant n are generated by the constant generation apparatus under the control of the sequence control signal generation apparatus, and the output of the counter and the constants are operated by the operation device, preparing their respective addresses for writing the input data in the RAM.
When a clock pulse is not input to the shift register, the constant is not generated by the constant generation apparatus, and the address of the shifted data is input to the operation unit as it is, thereby preparing the address for reading the shifted data from the RAM
|
| Related patents |
|
|
Calibration of a plurality of excitation sources for an instrumentation system
A calibration system for calibrating a plurality of excitation sources for an instrumentation system according to the present invention includes a single adjustable ...
|
|
|
Video delivery system and method for displaying indexing slider bar on the subscriber video screen
The present invention comprises a system and method which displays a graphical icon, such as a slider bar, on a subscriber's television or display unit for indexing to ...
|
|
|
Method and apparatus for stop-motion playback of a record disc
The present invention is embodied in a record medium for recording a specially-formatted composite signal that includes both a video signal, representative of a video ...
|
|
|
Circuit for reducing intermodulation distortion in a frequency-modulated signal
Accordingly, it is a general object of the present invention to provide a novel and useful intermodulation distortion reducing circuit for reducing intermodulation ...
|
|
|
Video matte generator
p A preferred embodiment of the present invention is a matte generator for generating a video signal representative of a matte having a uniform color, comprising input ...
|
|
|
Jitter correction circuit
A primary object of the present invention is to provide a jitter correction circuit of a relatively simple configuration for suppressing a jitter. According to an ...
|
|
|
Motion detection between even and odd fields within 2:1 interlaced television standard
A general object of the present invention is to provide a method and apparatus for detecting images in motion between even and odd fields within a two-to-one interlaced ...
|
|
|
Method and apparatus for capturing video images
The present invention provides method and apparatus for acquiring video signals having different video formats, determining those formats and their associated parameters,...
|
|
|
Ghost-cancelation reference signal acquisition circuitry, as for TV receiver or video recorder
OF PREFERRED EMBODIMENTS The term "television set" is used in this specification to describe a television receiver front end with accompanying kinescope, power supply ...
|
|
|
Time base correction of color video signal from playback apparatus
Accordingly, it is an object of this invention to provide an improved arrangement for correcting or compensating for time base errors in a color video signal ...
|
|
|
TV Signal 
