Inventor

Ju-Hi J. Hong

Inventor

San Jose, CA, US

Overview

1976–2011

Patent span

Physics

Primary field (CPC G)

Patents· 15 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer56%

H04LTransmission of digital information, e.g. telegraphic communication17%

H03MCoding11%

H03KPulse technique6%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses6%

H04JMultiplex communication6%

PatentTitleYear

8,018,805'Media type detection using a lock indicator'2011 7,652,962'Using PRML read channel ADC for blank/defect and ripple detection'2010 7,161,522'Severe asymmetry compensator for optical recording PRML read channel'2007 6,865,041'Method and apparatus for servowriting using a unipolar write current'2005 6,456,449'Disk drive with wide servo burst pattern and wide servo sensing element'2002 6,393,511'Multi-track density direct access storage device'2002 6,239,947'Milliactuator with integrated sensor and drivers and method of manufacturing the same'2001 6,002,541'Method and apparatus for providing a linear position error sensing (PES) signal'1999 5,999,351'Multi-track density direct access storage device'1999 5,717,538'Asynchronous position error signal detector employing weighted accumulation for use in servo system'1998 5,448,571'Method and apparatus for determining byte synchronization within a serial data receiver'1995 4,677,627'Error correction scheme'1987 4,291,357'Short circuit protection circuit'1981 4,225,969'Method and apparatus for testing a frequency synthesizer in an RF modem'1980 3,986,126'Serial pulse-code-modulated retiming system'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2002Patents assigned to IBM (11)· patent assignee history

1976Based in Poughkeepsie, NY, US· patent location history

1980–1987Based in Raleigh, NC, US· patent location history

1995–2011Based in San Jose, CA, US· patent location history

2005Patents assigned to HITACHI GLOBAL STORAGE TECH (1)· patent assignee history

2007Patents assigned to LSI LOGIC CORP (1)· patent assignee history

2010–2011Patents assigned to LSI CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	11	1976–2002
LSI CORP	2	2010–2011
HITACHI GLOBAL STORAGE TECH	1	2005
LSI LOGIC CORP	1	2007

Locations

Location	Patents	Span
San Jose, California, US	11	1995–2011
Raleigh, NC, US	3	1980–1987
Poughkeepsie, New York, US	1	1976