WO1999046935A3 - Image and/or data signal processing - Google Patents

Image and/or data signal processing Download PDF

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Publication number
WO1999046935A3
WO1999046935A3 PCT/IB1999/000312 IB9900312W WO9946935A3 WO 1999046935 A3 WO1999046935 A3 WO 1999046935A3 IB 9900312 W IB9900312 W IB 9900312W WO 9946935 A3 WO9946935 A3 WO 9946935A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
input
signal processing
data signal
data signals
Prior art date
Application number
PCT/IB1999/000312
Other languages
French (fr)
Other versions
WO1999046935A2 (en
Inventor
Jeroen H C J Stessen
Eric P Funke
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to JP54553699A priority Critical patent/JP2001525157A/en
Priority to EP99902772A priority patent/EP0981904A2/en
Publication of WO1999046935A2 publication Critical patent/WO1999046935A2/en
Publication of WO1999046935A3 publication Critical patent/WO1999046935A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0105—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level using a storage device with different write and read speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)
  • Color Television Systems (AREA)

Abstract

In a method of processing input image and/or data signals (Ri, Gi, Bi) having an input frequency (Hi) and a number of active input lines, the input image and/or data signals (Ri, Gi, Bi) are written into a buffer (LM-R, LM-G, LM-B) at the input frequency (Hi), and output image and/or data signals (Ro, Go, Bo) are read from the buffer (LM-R, LM-G, LM-B) at an output frequency (Ho) other than the input frequency (Hi) thereby ensuring that the output image and/or data signals (Ro, Go, Bo) have a number of active output lines other than the number of active input lines.
PCT/IB1999/000312 1998-03-12 1999-02-22 Image and/or data signal processing WO1999046935A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54553699A JP2001525157A (en) 1998-03-12 1999-02-22 Processing of one or both of image signal and data signal
EP99902772A EP0981904A2 (en) 1998-03-12 1999-02-22 Image and/or data signal processing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98200789 1998-03-12
EP98200789.0 1998-03-12

Publications (2)

Publication Number Publication Date
WO1999046935A2 WO1999046935A2 (en) 1999-09-16
WO1999046935A3 true WO1999046935A3 (en) 1999-11-25

Family

ID=8233459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/000312 WO1999046935A2 (en) 1998-03-12 1999-02-22 Image and/or data signal processing

Country Status (3)

Country Link
EP (1) EP0981904A2 (en)
JP (1) JP2001525157A (en)
WO (1) WO1999046935A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001117531A (en) 1999-10-18 2001-04-27 Nec Corp Display device with function of uniformizing pixel emission frequency
JP3769435B2 (en) 1999-11-05 2006-04-26 株式会社豊田中央研究所 Road friction estimation device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252691A (en) * 1990-10-19 1992-08-12 Rca Licensing Corp Signal time scaling apparatus
US5534940A (en) * 1992-12-16 1996-07-09 Kabushiki Kaisha Japan Apparatus and method for driving a liquid crystal display utilizing various television system formats
DE19517356C1 (en) * 1995-05-11 1996-11-28 Ldt Gmbh & Co Video system
US5677737A (en) * 1995-12-27 1997-10-14 Rca Thomson Licensing Corporation Video compression for wide screen television
EP0817482A2 (en) * 1996-07-02 1998-01-07 Matsushita Electric Industrial Co., Ltd. Scanning line converting circuit and interpolation coefficient generating circuit
GB2315180A (en) * 1996-07-05 1998-01-21 Samsung Electronics Co Ltd Video signal converting apparatus and LCD display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252691A (en) * 1990-10-19 1992-08-12 Rca Licensing Corp Signal time scaling apparatus
US5534940A (en) * 1992-12-16 1996-07-09 Kabushiki Kaisha Japan Apparatus and method for driving a liquid crystal display utilizing various television system formats
DE19517356C1 (en) * 1995-05-11 1996-11-28 Ldt Gmbh & Co Video system
US5677737A (en) * 1995-12-27 1997-10-14 Rca Thomson Licensing Corporation Video compression for wide screen television
EP0817482A2 (en) * 1996-07-02 1998-01-07 Matsushita Electric Industrial Co., Ltd. Scanning line converting circuit and interpolation coefficient generating circuit
GB2315180A (en) * 1996-07-05 1998-01-21 Samsung Electronics Co Ltd Video signal converting apparatus and LCD display device

Also Published As

Publication number Publication date
EP0981904A2 (en) 2000-03-01
WO1999046935A2 (en) 1999-09-16
JP2001525157A (en) 2001-12-04

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