Re: [PSES] CISPR 32, colour bar with moving element (ITU-R BT.1729)
Hi Tom, I just found your posting of the ITU-R BT.1729 colour bar test pattern. This is great! Does this fully implement the ITU-R BT.1729 colour bar test pattern? ** BOUNCING BALL: I couldn't find anything in the standard that mentions a bouncing ball, but I like the feature and one could argue that this might catch some problems missed without it. ** ZONE 12 MOVING BAR: Page 6 of the standard states that Zone 12 contains a bar which moves horizontally from left to right and then starts again from the left. This is used for checking audio-video synchronization and to establish that the channel is active. The bar travels horizontally across its zone in 1 s. The audio sync signal is given when the bar passes the centreline. There is more description to the zone 12 in the standard, but the above quote is sufficient to say that I don't see anything moving in zone 12 of your application. Do you have plans to fix the zone 12? I am definitely looking for something I can use to test monitors for CISPR32 using the ITU-R BT.1729 colour bar test pattern. For all, the ITU-R BT.1729 standard is available online for free at: http://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1729-0-200504-I!!PDF-E.pdf Thanks. Monrad http://www.oracle.com On 4/5/2014 1:51 AM, T.Sato wrote: Hello, We used to use scrolling-Hs test pattern for CISPR 22 and ANSI C63.4, but CISPR 32 requires ITU-R BT.1729 colour bar with small moving element for computer displays and similar devices. Now, I made web pages which will display the test pattern on web browsers. If you are interested, please try it, at: http://homepage3.nifty.com/tsato/scrolling-h/colorbar.html Regards, Tom - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] CISPR 32, colour bar with moving element (ITU-R BT.1729)
CISPR 32 requires the color bars with a moving element. What that moving element is isn't nailed down in the standard. The reason for the moving element is that we (CISPR SC I) are trying to harmonize CISPR 32 (emissions) and CISPR 35 (immunity) to the maximum extent possible. You need a moving element for immunity so you know that the image is no longer being updated if you fail an immunity test. A static image would not give you that information. Ghery S. Pettit From: monrad monsen [mailto:monrad.mon...@oracle.com] Sent: Friday, June 06, 2014 12:03 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] CISPR 32, colour bar with moving element (ITU-R BT.1729) Hi Tom, I just found your posting of the ITU-R BT.1729 colour bar test pattern. This is great! Does this fully implement the ITU-R BT.1729 colour bar test pattern? ** BOUNCING BALL: I couldn't find anything in the standard that mentions a bouncing ball, but I like the feature and one could argue that this might catch some problems missed without it. ** ZONE 12 MOVING BAR: Page 6 of the standard states that Zone 12 contains a bar which moves horizontally from left to right and then starts again from the left. This is used for checking audio-video synchronization and to establish that the channel is active. The bar travels horizontally across its zone in 1 s. The audio sync signal is given when the bar passes the centreline. There is more description to the zone 12 in the standard, but the above quote is sufficient to say that I don't see anything moving in zone 12 of your application. Do you have plans to fix the zone 12? I am definitely looking for something I can use to test monitors for CISPR32 using the ITU-R BT.1729 colour bar test pattern. For all, the ITU-R BT.1729 standard is available online for free at: http://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1729-0-200504-I!!PDF-E.pdf Thanks. Monrad On 4/5/2014 1:51 AM, T.Sato wrote: Hello, We used to use scrolling-Hs test pattern for CISPR 22 and ANSI C63.4, but CISPR 32 requires ITU-R BT.1729 colour bar with small moving element for computer displays and similar devices. Now, I made web pages which will display the test pattern on web browsers. If you are interested, please try it, at: http://homepage3.nifty.com/tsato/scrolling-h/colorbar.html Regards, Tom - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to emc-p...@ieee.orgmailto:emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)http://www.ieee-pses.org/list.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.netmailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.orgmailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.orgmailto:j.bac...@ieee.org David Heald dhe...@gmail.commailto:dhe...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] CISPR 32, colour bar with moving element (ITU-R BT.1729)
On Fri, 6 Jun 2014 13:03:18 -0600, monrad monsen monrad.mon...@oracle.com wrote: I just found your posting of the ITU-R BT.1729 colour bar test pattern. This is great! Does this fully implement the ITU-R BT.1729 colour bar test pattern? No, as I wrote These colorbars (test patterns) were derived from ITU-R BT.1729, but they are not accurate. in the BUGS section of the page. Especially, frequency and waveform of color sweeps are incorrect. left to right and then starts again from the left. This is used for checking audio-video synchronization and to establish that the channel is active. The bar travels horizontally across its zone in 1 s. The audio sync signal is given when the bar passes the centreline. There is more description to the zone 12 in the standard, but the above quote is sufficient to say that I don't see anything moving in zone 12 of your application. Do you have plans to fix the zone 12? No at least at this time, and I thought this Zone 12 is not important for CISPR 32/35, as we usually use 1 kHz monotone audio signal and will not check audio-video sync. However, I would appreciate if someone can help improve this test program, expecially those test patterns. Regards, Tom -- Tomonori Sato vef00...@nifty.ne.jp URL: http://homepage3.nifty.com/tsato/ On 4/5/2014 1:51 AM, T.Sato wrote: Hello, We used to use scrolling-Hs test pattern for CISPR 22 and ANSI C63.4, but CISPR 32 requires ITU-R BT.1729 colour bar with small moving element for computer displays and similar devices. Now, I made web pages which will display the test pattern on web browsers. If you are interested, please try it, at: http://homepage3.nifty.com/tsato/scrolling-h/colorbar.html Regards, Tom - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
