Mobile security audio-video recorder with local storage and continuous recording loop
First Claim
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1. An apparatus for a vehicle security system, the apparatus comprising:
- a front view camera sensor, said front view camera sensor is configured to capture 30 frames-per-second at a minimum of high definition resolution;
a rear and side view wide angle camera sensor, said rear and side view wide angle camera sensor is configured to capture 30 frames-per-second at a minimum of high definition resolution;
at least one image signal processor coupled to said front view camera sensor and said rear and side view wide angle camera sensor for performing image signal processing functions including but not limited to auto white balance, auto gain, wide-angle lens barrel distortion reduction, lens defect compensation, and motion stabilization;
a motion adaptive spatial and temporal filtering unit that is coupled to output of said at least one image signal processor for preprocessing of video data;
at least one video compression unit according to H.264 standard that is coupled to output of said motion adaptive spatial and temporal filtering unit, said at least one video compression unit can compress 30 frames-per-second at a minimum of high definition resolution;
a microphone, audio preamplifier, audio-to-digital conversion circuit, and an audio compression unit;
a multiplexer to combine output of said audio compression unit and said at least one video compression unit;
a processor to store output of said multiplexer on a removable non-volatile semiconductor storage media in a continuous record loop in a circular buffer, said circular buffer stores multiple days of storage of surveillance data, in accordance with size of said removable non-volatile semiconductor storage media, before oldest data is overwritten by newly recorded video;
an Internet interface unit coupled to said processor, said Internet interface uses an interface including but not limited to 802.11 wireless interface, 3G data interface, or 4G data interface;
a transrating unit coupled to said removable non-volatile semiconductor storage media using said Internet interface unit for transmitting said stored surveillance data at a different bit rate in accordance with transmit channel and destination capabilities;
the apparatus is housed in a single and compact housing that is mounted on the front or back windshield of a vehicle; and
said removable non-volatile semiconductor media is configured to be unplugged and contents of said semiconductor media are viewed when plugged into a personal computer or a TV.
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Abstract
An internet connected mobile security system for recording at least one audio and video on a removable semiconductor storage media in a continuous record loop for evidentiary documentation purposes inside an automotive vehicle or as a wearable video recording device is described.
29 Citations
7 Claims
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1. An apparatus for a vehicle security system, the apparatus comprising:
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a front view camera sensor, said front view camera sensor is configured to capture 30 frames-per-second at a minimum of high definition resolution; a rear and side view wide angle camera sensor, said rear and side view wide angle camera sensor is configured to capture 30 frames-per-second at a minimum of high definition resolution; at least one image signal processor coupled to said front view camera sensor and said rear and side view wide angle camera sensor for performing image signal processing functions including but not limited to auto white balance, auto gain, wide-angle lens barrel distortion reduction, lens defect compensation, and motion stabilization; a motion adaptive spatial and temporal filtering unit that is coupled to output of said at least one image signal processor for preprocessing of video data; at least one video compression unit according to H.264 standard that is coupled to output of said motion adaptive spatial and temporal filtering unit, said at least one video compression unit can compress 30 frames-per-second at a minimum of high definition resolution; a microphone, audio preamplifier, audio-to-digital conversion circuit, and an audio compression unit; a multiplexer to combine output of said audio compression unit and said at least one video compression unit; a processor to store output of said multiplexer on a removable non-volatile semiconductor storage media in a continuous record loop in a circular buffer, said circular buffer stores multiple days of storage of surveillance data, in accordance with size of said removable non-volatile semiconductor storage media, before oldest data is overwritten by newly recorded video; an Internet interface unit coupled to said processor, said Internet interface uses an interface including but not limited to 802.11 wireless interface, 3G data interface, or 4G data interface; a transrating unit coupled to said removable non-volatile semiconductor storage media using said Internet interface unit for transmitting said stored surveillance data at a different bit rate in accordance with transmit channel and destination capabilities; the apparatus is housed in a single and compact housing that is mounted on the front or back windshield of a vehicle; and said removable non-volatile semiconductor media is configured to be unplugged and contents of said semiconductor media are viewed when plugged into a personal computer or a TV. - View Dependent Claims (2, 3, 4)
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5. An apparatus for personal security and evidentiary recording, the apparatus comprising:
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a front field of view camera image sensor with at least high definition resolution; a rear and side wide angle field of view camera image sensor with at least high definition resolution; an audio microphone; a removable flash memory including but not limited to USB memory key, SD memory card, or micro SD memory card; a rechargeable battery; a system-on-a-chip processor coupled to said removable flash memory, said rear and side field of wide angle view camera image sensor and said front field of view camera image sensor, said system-on-a-chip processor comprising; a camera ISP hardware unit for both said rear and side field of wide angle view camera image sensor and said front field of view camera image sensor; a lens correction ISP hardware unit for both said rear and side field of wide angle view camera image sensor and said front field of view camera image sensor, which performs including but not limited to lens barrel distortion and lens defect compensation; a motion stabilization ISP hardware unit that is coupled to output of said lens correction ISP hardware unit for both said rear and side field of wide angle view camera image sensor and said front field of view camera image sensor; a motion adaptive spatial and temporal filtering ISP hardware unit that is coupled to output of said motion stabilization hardware unit for both said rear and side field of wide angle view camera image sensor and said front field of view camera image sensor; at least one H.264 video compression unit at 30 frames-per-second for multiple video streams that is coupled to output of said motion adaptive spatial and temporal filtering ISP hardware unit; a transrating unit coupled to said removable flash memory for changing bit rate and resolution before transmittal in accordance with transmit channel conditions and request from a remote viewing site; an audio front-end and an audio compression unit; an audio and video multiplexing unit for combining the output of said audio compression unit and said at least one H.264 video compression unit; wherein compressed and multiplexed audio-video is stored on said removable flash memory using a circular queue, said circular queue stores at least several days of recording; a 3G data connection interface to transfer a portion of said multiplexed audio-video stored on said removable flash memory from time t1 to time t2 in accordance with a remote request; wherein contents of said removable flash memory is are viewable on a personal computer or a TV; and a small compact enclosure that is smaller than 2½
inch by 2 inch by ½
inch in size that includes and integrates all parts of said apparatus is mounted on a vehicle windshield. - View Dependent Claims (6, 7)
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Specification