Inventor

KEITHLEY DOUGLAS GENE

US52 patents

⚠️ This page may combine multiple inventors who share the name “KEITHLEY DOUGLAS GENE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KEITHLEY DOUGLAS GENE

MARVELL INT TECHNOLOGY LTD

Resolution doubling for printer apparatus

Laser printer with reduced banding artifacts

Image forming apparatus for identifying undesirable toner placement

Image enhancement employing partial template matching

System and method for scaling data to compensate for slanted scanning in a bidirectional scanning laser printer

Image enhancement employing partial template matching

Laser print apparatus with dual halftones

Laser print apparatus with dual halftones

Programmable I/O interface

Modulated video waveform generator

Laser print apparatus with toner explosion compensation

Method and apparatus for image processing

Image processing method and device

Method and apparatus for image processing

Method and apparatus for image processing

Resolution doubling for printer apparatus

Parallel video processing architecture

Image enhancement employing partial template matching

Fixed frequency clock output having a variable high frequency input clock and an unrelated fixed frequency reference signal

Method of pre-processing data on a host machine for a host-based print system

Method of pre-processing data on a host machine for a host-based print system

Method and apparatus for interval DMA transfer access

Method and apparatus for DMA-generated memory write-back

Independent video hardware blocks to support laser printers

MARVELL INT LTD

Image forming apparatus for identifying undesirable toner placement

Storing and removing device drivers in memory in imaging devices

Method and apparatus for increasing data retention capability of a non-volatile memory

Method and apparatus for processing image data for an irregular output scan path

On-the-fly halftone image generation

Image processing using stability criteria for window of pixels

Method and apparatus for performing error diffusion among a plurality of pixels of an image during a halftoning process on the image

Method and apparatus for optimizing memory usage in an imaging device

Method and apparatus for estimating usage of print substance in a printer

Flexible image processing apparatus and method

Alignment of color planes in multi-beam multi-pass printers

Systems and methods for laser spacing compensation in laser printing devices

Method and apparatus for scanning an image

AVAGO TECHNOLOGIES GENERAL IP

Variable frequency generator

Integrated circuit with configuration based on parameter measurement

Fixed frequency clock output having a variable high frequency input clock and an unrelated fixed frequency reference signal

Integrated circuit with parameter measurement

Variable frequency generator

Integrated circuit and method for detecting the state of an oscillating signal

KEITHLEY DOUGLAS GENE

Device and method for digitizing a serialized scanner output signal

Laser print apparatus with dual half tones

Laser print apparatus with dual halftones

MARVELL WORLD TRADE LTD

Laser oscillating mirror support for color printer

Method and system for performing image processing on a document based on a delayed determination of whether the document is monochrome or color

BRIGGS RANDALL DON

Reset circuitry for an integrated circuit

TAYLOR RICHARD DAVID

Programmable I/O interface