Logging recorder system for trunking radio
First Claim
1. A logging recorder for a trunking radio system having a plurality of channels that carry streams of segments from unrelated conversations according to channel assignment information generated by a trunking controller, comprising:
- a plurality of fixed frequency radios each of which monitors a selected one of said plurality of channels;
a controller which monitors said fixed frequency radios and generates identification information corresponding to said segments based upon said channel assignment information;
means for combining each of said segments with said corresponding identification information; and
means for storing said segments and said identification information on a storage device.
1 Assignment
0 Petitions
Accused Products
Abstract
A logging recorder system for trunking radio includes a device which monitors a plurality of channels of the trunking radio system and outputs analog signals representative thereof. A digitizer is then provided for digitizing the analog signals, and a controller breaks the digitized signals into segments and stores the segments on a storage device. The controller also generates an index of locations of the segments on the storage device. The controller may then be used to selectively play back a desired conversation by automatically combining segments from the storage device based on the index.
-
Citations
40 Claims
-
1. A logging recorder for a trunking radio system having a plurality of channels that carry streams of segments from unrelated conversations according to channel assignment information generated by a trunking controller, comprising:
-
a plurality of fixed frequency radios each of which monitors a selected one of said plurality of channels; a controller which monitors said fixed frequency radios and generates identification information corresponding to said segments based upon said channel assignment information; means for combining each of said segments with said corresponding identification information; and means for storing said segments and said identification information on a storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21)
-
-
20. A digital logging recorder for a trunking radio system having a plurality of channels that carry streams of segments from unrelated conversations according to channel assignment information generated by a trunking controller, comprising:
-
means for monitoring the plurality of channels and outputting analog signals representative thereof; means for digitizing selected ones of said analog signals; control means for monitoring the digitized signals and generating identification information corresponding to said segments based upon said channel assignment information; means for combining each of said segments with said corresponding identification information; and means for storing said segments and said identification information on a storage device.
-
-
22. A method of logging a trunking radio system having a plurality of channels that carry streams of segments from unrelated conversations according to channel assignment information generated by a trunking controller, comprising the steps of:
-
monitoring said plurality of channels; generating identification information corresponding to said segments based upon said channel assignment information; combining each of said segments with said corresponding identification information; and storing said segments and said identification information on a storage device. - View Dependent Claims (23, 24)
-
-
25. A digital logging system, comprising:
-
a plurality of fixed frequency radios each of which monitors a selected channel of a trunking radio system; a controller which monitors said fixed frequency radio and records selected segments of outputs thereof on a mass storage device in indexed fashion according to information received from a trunking controller; and means for playing back a desired conversation by automatically combining said segments based on said index.
-
-
26. A digital logging recorder for a trunking radio system having a plurality of communication channels that transmit communications between subscriber stations according to control information generated by a trunking controller, comprising:
-
a plurality of receivers, each of which receives a transmission from one of the communication channels and outputs an analog audio signal; signal processing circuitry which converts the analog audio signal into segments of digital audio data each of which contains a portion of the transmission; a controller which receives the control information and generates indexing information corresponding to each of the segments of digital audio data and which combines the indexing information with the corresponding segment of digital audio data, the indexing information identifying the portion of the transmission contained in the corresponding segment of digital audio data; and a storage medium which stores the indexed segments of digital audio data. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
-
-
34. A method of logging a transmission from a trunking radio system having a plurality of communication channels controlled by control information generated by a trunking controller, comprising:
-
recovering from the control information data allocating one of the communication channels for the transmission; receiving an analog audio signal transmitted on the allocated communication channel; converting the analog audio signal into segments of digital audio data each of which contains a portion of the transmission; generating indexing information corresponding to each of the segments of digital audio data, the indexing information identifying the portion of the transmission contained in the corresponding segment of digital audio data; combining the indexing information with the corresponding segment of digital audio data; and storing each of the indexed segments of digital audio data to a storage medium. - View Dependent Claims (35, 36)
-
-
37. A method of playing back a trunking radio transmission stored as segments of digital audio data on a storage medium, the method comprising:
-
generating a data selection criterion which provides information about the trunking radio system transmission; comparing the data selection criterion against data segment indexing information to identify each of the segments of digital audio data corresponding to the trunking radio transmission; retrieving each of the identified segments of digital audio data from the storage medium; converting each of the retrieved segments of digital audio data into an analog sound signal; and playing the analog sound signal through a sound reproducing device. - View Dependent Claims (38)
-
-
39. A method of simultaneously recording and playing back a trunking radio system transmission comprising:
-
receiving an analog audio signal transmitted on one of a plurality of trunking radio channels; converting the analog audio signal into a digital signal; dividing the digital audio signal into a plurality of data segments; storing each of the data segments to a storage medium; comparing each of the data segments to a predetermined playback criterion; and if one of the data segments satisfies the predetermined playback criterion, converting the data segment into an analog playback signal and playing the analog playback signal through a sound reproducing device. - View Dependent Claims (40)
-
Specification