Web page “Real Shot” http://www.sony.jp/products/Professional/cctv/network_c_index.html, 1 sheet, Sony (Feb. 2003). |
Web page “News and Information, PCS-1500” http://www.sony.jp/CorporateCruise/press/199905/99-017/, 3 sheets, Sony Markeing (Japan) Inc. (Feb. 2003). |
Web page “Sony Video Conferencing System, PCS-1600” http://www.sony.jp/products/Professional/VIDEOCONF/1600.html, 1 sheet, Sony (Feb. 2003). |
Web page “View Station SP/SP384” http://www.polycom.co.jp/viewstation/va_sp.html, 1 sheet, Polycom Japan (Feb. 2003). |