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(12) United States Patent Siann et a]. US008121078B2 (10) Patent N0.: (45) Date of Patent: US 8,121,078 B2 Feb. 21, 2012 (54) (75) (73) (21) (22) (65)

US. Patent 706 700 Z 716 712 704 708 Feb. 21, 2012 Sheet 8 0f 8 us 8,121,078 B2 FIG. 7

US 8,121,078 B2 1 WIRELESS NETWORK CAMERA SYSTEMS CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of US. patent applica tio

US 8,l2l ,078 B2 3 cell. The system also includes a base station, separated from the solar powered wireless camera, in wireless communica tion with th

US 8,121,078 B2 5 mation via the second wireless network. The low-bandwidth transceiver can be con?gured to consume less than 4 mW of power in constan

US 8,121,078 B2 7 data transmission. For example, by implementing a second low-bandwidth radio/transceiver in the wireless camera, the modi?ed media a

US 8,121,078 B2 effective system. Video recording can be done at the central location, providing the bene?ts of immediate access to secu rity of?cials

US 8,121,078 B2 11 Yanjun Hu, et al. entitled “An Ef?cient Joint Dynamic Detec tion Technique for Wireless Transmission of JPEG2000 Encoded Images.” T

US 8,121,078 B2 13 also means that the instantaneous power consumption of the imager can be relatively large during the frame capture and transfer pro

US 8,121,078 B2 15 the high-bandwidth radio 104 and the low-bandwidth radio 106 can be in the same transceiver block. Additionally, errors in the bit

US 8,121,078 B2 17 name server (DDNS) service can be used to allow users anywhere on the Internet to “?nd” the base station web server 222, even if it

US 8,121,078 B2 Page 2 U.S. PATENT DOCUMENTS 2005/0128295 A1* 6/2005 Addy ... .. 348/153 2006/0227997 A1 10/2006 Au et al. 2006

US 8,121,078 B2 19 The wireless camera can include a high-bandwidth radio transceiver, which can operate under a steady state commu nication condition

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