Event logging system using a magnetic recorder

Claim 2

In an event logging system for recording digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having recording track, the combination comprising: a. actuable first channel means including a head and an analog circuit adapted to convert analog information into a format suitable for magnetic recording by said head, said channel means being effective when actuated for recording events on the track of said tape; said first channel means including: i. an event detector for producing electrical signals representative of events respectively; ii. a pulse rejector timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; b. switch means effective when moved to an operative position for actuating said channel means to cause said system to record data.

Claim 3

In an event logging system for recording digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having a recording track, the combination comprising: a. actuable first channel means including a head and an analog circuit adapted to convert analog information into a format suitable for magnetic recordings by said head, said channel measn being effective when actuated for recording events on the track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; b. switch means effective when moved to an operative position for actuating said channel means to cause said system to record data; and c. an interlock mechanism movable to a first position by an aligned cassette in saId cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent loss of data.

Claim 4

In an event logging system for recording digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having a recording track, the combination comprising: a. actuable first channel means including a head and an analog circuit adapted to convert analog information into a format suitable for magnetic recordings by said head, said channel measn being effective when actuated for recording events on the track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; b. switch means effective when moved to an operative position for actuating said channel means to cause said system to record data; and c. an interlock mechanism movable to a first position by an aligned cassette in saId cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent loss of data.

Claim 5

In an event logging system for recording by a head supported upon a pivotally mounted arm, digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having first and second recording tracks, the combination comprising: a. first actuable channel means including an analog circuit adapted to convert analog information into a format suitable for magnetic recording by said head on one of said tracks, said first channel means being effective when actuated for recording event information on said one track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; b. second actuable channel means including a shift register and being effective when actuated for recording digital input data on said second track; c. means actuable by said pivotally mounted arm means when moved to said operative position to actuate said first and second channel means; and d. an interlock mechanism movable to a first position by an aligned cassette in said cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent loss of data.

Claim 6

In an event logging system for recording by a head supported upon a pivotally mounted arm, digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having first and second recording tracks, the combination comprising: a. first actuable channel means including an analog circuit adapted to convert analog information into a format suitable for magnetic recording by said head on one of said tracks, said first channel means being effective when actuated for recording event information on said one track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; b. second actuable channel means including a shift register and being effective when actuated for recording digital input data on said second track; c. means actuable by said pivotally mounted arm means when moved to said operative position to actuate said first and second channel means; and d. an interlock mechanism movable to a first position by an aligned cassette in said cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent loss of data.

Claim 7

In an event logging system for recording digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having first and second recording tracks, the combination comprising: a. pivotally mounted arm means having a recording head and a pinch roller and being adapted to be pivoted from an inoperative to an operative position wherein said pinch roller engages said tape and said head is disposed in recording relation to said recording tracks; b. first actuable channel means effective when actuated for being coupled to said head and including analog circuit adapted to convert analog information into a format suitable for magnetic recording by said head on one of said tracks, said first channel means being effective when actuated for recording event information on said one track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; c. second actuable channel means coupled to said head and including a shift register and being effective when actuated for recording digital input data on said second track; d. switch means actuable by said pivotally mounted arm means when moved to said operative position to actuate said first and second channel means; and e. an interlock mechanism movable to a first position by an aligned cassette in said cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent lOss of data.

Claim 8

In an event logging system for recording digital data representative of events and including means for receiving a cassette including a continuously movable magnetic tape having first and second recording tracks, the combination comprising: a. pivotally mounted arm means having a recording head and a pinch roller and being adapted to be pivoted from an inoperative to an operative position wherein said pinch roller engages said tape and said head is disposed in recording relation to said recording tracks; b. first actuable channel means effective when actuated for being coupled to said head and including analog circuit adapted to convert analog information into a format suitable for magnetic recording by said head on one of said tracks, said first channel means being effective when actuated for recording event information on said one track of said tape, said first channel means including: i. an event detector for producing electrical signals representative of events, respectively; ii. a pulse rejection timer circuit coupled to said event detector for passing only one of said event signals for one detected event; and iii. a current reversal flip-flop coupled to said head and said timer circuit and responsive to the one processed event signal by said timer circuit to change the flip-flop state and record the one event; c. second actuable channel means coupled to said head and including a shift register and being effective when actuated for recording digital input data on said second track; d. switch means actuable by said pivotally mounted arm means when moved to said operative position to actuate said first and second channel means; and e. an interlock mechanism movable to a first position by an aligned cassette in said cassette receiving means to permit recording and movable to a second position to prevent the recording of information when a cassette is not properly aligned in said cassette receiving means thereby preventing damage to said system or inadvertent lOss of data.

Claim 9

The invention as set forth in claim 4 wherein said first channel means includes means including a pair of indicator lamps for indicating the state of said current reversal flip-flop.

Claim 10

The invention as set forth in claim 5 wherein said second channel means includes a phase encoder coupled to said shift register and a system clock adapted to provide signals to said shift register and said phase encoder.

Claim 11

The invention as set forth in claim 6 wherein said phase encoder is adapted to record bi-phase mark data.