Surveillance data recording device and method
First Claim
Patent Images
1. A surveillance data recording device, comprising:
- a display configured to display a received surveillance data signal over a first bandwidth;
a digital tuner and control mechanism, wherein the control mechanism is configured to select a frequency band of interest, and the digital tuner truncates the received signal to produce a narrowband signal comprising portions of the received signal within the frequency band of interest; and
a digital storage unit that stores the narrowband signal over a first period of time.
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Abstract
A surveillance data recording device includes a display, a digital tuner, and a control mechanism. The display displays a received surveillance data signal over a first bandwidth. The control mechanism allows a user to select a frequency band of interest. The digital tuner truncates the received signal to produce a narrowband signal comprised only of portions of the received signal that are within the frequency band of interest. A digital storage unit, such as a fixed or removable hard drive or solid state storage device, stores the narrowband signal over a period of time.
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Citations
17 Claims
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1. A surveillance data recording device, comprising:
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a display configured to display a received surveillance data signal over a first bandwidth; a digital tuner and control mechanism, wherein the control mechanism is configured to select a frequency band of interest, and the digital tuner truncates the received signal to produce a narrowband signal comprising portions of the received signal within the frequency band of interest; and a digital storage unit that stores the narrowband signal over a first period of time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A surveillance data recording device, comprising:
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a communications port that obtains a surveillance data signal from an external receiver; a display configured to display a first bandwidth of the surveillance data signal; a digital tuner configured to select a frequency band of interest and truncate the surveillance data signal to produce a narrowband signal comprising portions of the received signal within the frequency band of interest; an analog signal conditioner configured to filter interference from the narrowband signal; an integral global positioning system receiver configured to generate GPS time codes and location codes; and a digital storage unit that stores the narrowband signal, the GPS time codes and the location codes over the first period of time. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of isolating and recording a signal, the method comprising the steps of:
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receiving a signal over a radio frequency spectrum; displaying the signal over the radio frequency spectrum; receiving a user selection of a frequency band of interest; isolating the frequency band of interest from the received radio frequency spectrum to produce a narrowband frequency specific signal; and recording the narrowband frequency specific signal on a digital storage device thereby producing a recorded data signal representing any activity on said isolated frequency band over a first period of time. - View Dependent Claims (14, 15, 16, 17)
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Specification