A flash rate cycle between one to three Hz (flashes per second) is required based on research results. Recommendation: Flash synchronization is an important consideration....
Search Results "Flash Synchronization"
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  Pulse Duration and Flash Rate
  
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  408.3 Flashing
  Where ICT emits lights in flashes, there shall be no more than three flashes in any one-second period.... 
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  405.1 General
  Where ICT emits lights in flashes, there shall be no more than three flashes in any one-second period.... 
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  405.1 General (Section-by-Section Analysis)
  405.1 General (Section-by-Section Analysis) This section proposes that, where ICT emits lights in flashes, there can be no more than three flashes in any one-second period.... 
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  4.28.3(5)
  (5) The flash rate shall be a minimum of 1 Hz and a maximum of 3 Hz.... 
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  Paragraph (f) Prevention of visually induced seizures (Section-by-Section Analysis)
  The NPRM suggested that the flash rate for visual indicators be set at or below 3 Hz, based on research for visual fire alarms, and asked (Question 8) whether this value was appropriate.... 
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  §1193.43(f) Prevention of visually-induced seizures
  (f) Prevention of visually-induced seizures. Visual displays and indicators shall minimize visual flicker that might induce seizures in people with photosensitive epilepsy. 
- Flash Receiver (BE1442)
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  405 Flashing (Section-by-Section Analysis)
  405 Flashing (Section-by-Section Analysis) This is an introductory section.... 
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  405 Flashing
  [See subsections ...] 
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  NFPA: ADA Standard Section 105.2.5
  Section 105.2.5 of the ADA Standards cover references to the National Fire Protection Association (NFPA). 
- Tile Redi Free® Barrier Free Base and Flash Installation Video
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  F105.2.5 NFPA
  NFPA 72 specifies characteristics for visible alarms, such as flash frequency, color, intensity, placement, and synchronization.... 
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  105.2.5 NFPA
  NFPA 72 specifies characteristics for visible alarms, such as flash frequency, color, intensity, placement, and synchronization.... 
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  105.2.5 NFPA
  NFPA 72 specifies characteristics for visible alarms, such as flash frequency, color, intensity, placement, and synchronization.... 
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  [2010 ADAS] 105.2.5 NFPA
  NFPA 72 specifies characteristics for visible alarms, such as flash frequency, color, intensity, placement, and synchronization.... 
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  C.  Movie Basics
  Digital sound is synchronized to the visual images on the screen by a mechanism, called a reader head, that reads a timecode track printed on the film.... 
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  § 1194.22(b)
  (b) Equivalent alternatives for any multimedia presentation shall be synchronized with the presentation.... 
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  411.1 General
  Where ICT displays or processes video with synchronized audio, ICT shall conform to 411.1.1 or 411.1.2.... 
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  412.1 General
  Where ICT displays or processes video with synchronized audio, ICT shall provide a mode of operation that plays associated audio description.... 
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  414.1 General
  Where ICT displays or processes video with synchronized audio, ICT shall provide audio description processing technology conforming to 414.1.1 or 414.1.2.... 
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  413.1 General
  Where ICT displays or processes video with synchronized audio, ICT shall provide closed caption processing technology that conforms to 413.1.1 or 413.1.2.... 
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  503.4 User Controls for Captions and Audio Description
  Where ICT displays video with synchronized audio, ICT shall provide user controls for closed captions and audio descriptions conforming to 503.4.... 
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  503.4 User Controls for Captions and Audio Description
  Where ICT displays video with synchronized audio, ICT shall provide user controls for closed captions and audio description conforming to 503.4.... 
