US4958246A — Device of multi-channel rotary head type having f…

Claim 1

Independent Claim 159 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) head means for recording and/or reproducing information signals individual in or from a plurality of parallel areas extending in the longitudinal direction of a tape-shaped record bearing medium, said head medium, said head means including a rotary head which is arranged to trace said medium in such a manner as to obliquely traverse said plurality of areas; (b) first detection means for at least plurality detecting signals produced from said rotary head; (c) second detection means for detecting the rotating phase of said rotary head; and (d) discriminating means for outputting a plurality binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas according to outputs of said first and second detection means one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 2

Dependent Claim 159 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) head means for recording and/or reproducing information signals individual in or from a plurality of parallel areas extending in the longitudinal direction of a tape-shaped record bearing medium, said head medium, said head means including a rotary head which is arranged to trace said medium in such a manner as to obliquely traverse said plurality of areas; (b) first detection means for at least plurality detecting signals produced from said rotary head; (c) second detection means for detecting the rotating phase of said rotary head; and (d) discriminating means for outputting a plurality binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas according to outputs of said first and second detection means one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 3

Dependent Claim 30 words

An apparatus according to claim 1, further comprising means for mixing a reference signal of a predetermined frequency value with said information signals to be recorded by said head means.

Claim 4

Dependent Claim 28 words

An apparatus according to claim 2, wherein said first detection means includes a detection circuit which detects said reference signal included in signals produced from said rotary head.

Claim 5

Dependent Claim 27 words

An apparatus according to claim 3, wherein said reference signal is arranged to be of a frequency value lower than a carrier frequency of said information signals.

Claim 6

Dependent Claim 65 words

An apparatus according to claim 3, further comprising: mixing means for mixing pilot signals of a plurality of different frequency values with said information signals to be recorded by said head means; and control means for controlling the position: of said head means and that of said medium relative to each other by using said pilot signals included in signals produced from said head means.

Claim 7

Dependent Claim 36 words

An apparatus according to claim 5, wherein the frequency of said reference signal is lower than a carrier frequency of said information signals and differs from any of the different frequency values of said pilot signals.

Claim 8

Dependent Claim 35 words

An apparatus according to claim 1, wherein said first detection means includes a detection circuit which is arranged to detect a carrier wave of said information signals included in an output of said head means.

Claim 9

Dependent Claim 62 words

An apparatus according to claim 1, further comprising: mixing means for mixing pilot signals of different frequency values with information signals to be recorded by said heads means; and control means for controlling the position of said head means and that of said medium relative to each other by using said pilot signals included in the signals produced by said head means.

Claim 10

Dependent Claim 40 words

An apparatus according to claim 8, wherein said first detection means includes a detection circuit which is arranged to detect at least one of said pilot signals of said different frequency values included in an outputs, of said head means.

Claim 11

Dependent Claim 46 words

An apparatus according to claim 9, wherein said information signals are either first information signals including video information or second information signals not including video information; and said first detection means includes a detection circuit which is arranged to at least partially detect said video information.

Claim 12

Dependent Claim 51 words

An apparatus according to claim 1, further comprising display means which is arranged to simultaneously make a display which indicates whether or not said information signals are recorded in at least two of said plurality of areas on the basis of said plurality of binary signals output by said discriminating means.

Claim 13

Dependent Claim 15 words

An apparatus according to claim 1, wherein said information signals include time-base compressed audio signals.

Claim 14

Dependent Claim 42 words

An apparatus comprising to claim 1, wherein said discriminating means includes a first circuit which is arranged to produce a discriminating signal which indicates whether said information signals are recorded or not in said plurality of areas in a time sharing manner.

Claim 15

Dependent Claim 51 words

An apparatus according to claim 13, further comprising detection means arranged to detect the rotation phase of said rotary head; and wherein said discriminating means further includes a second circuit arranged to form said plurality of binary signals by using an output signal of said detection means and said discrimination signal.

Claim 16

Dependent Claim 176 words

A rotary head type recording and/or reproducing apparatus, comprising (a) transducing means including two rotary heads of different magnetizing directions, said rotary heads being arranged to record and/or reproduce information signals individually in or from a plurality of parallel areas of a tape-shaped recorded bearing medium extending in the longitudinal direction of said medium by tracing said medium in such a ay as to obliquely traverse and said plurality of parallel areas; (b) detection means for detecting a signal which is included in signals produced by said transducing means and is of a sufficiently low frequency value to be unaffected by the difference in the magnetizing direction between said rotary heads; and (c) discriminating means for outputting a plurality of binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas on the basis of an output of said detection means, one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 17

Dependent Claim 176 words

A rotary head type recording and/or reproducing apparatus, comprising (a) transducing means including two rotary heads of different magnetizing directions, said rotary heads being arranged to record and/or reproduce information signals individually in or from a plurality of parallel areas of a tape-shaped recorded bearing medium extending in the longitudinal direction of said medium by tracing said medium in such a ay as to obliquely traverse and said plurality of parallel areas; (b) detection means for detecting a signal which is included in signals produced by said transducing means and is of a sufficiently low frequency value to be unaffected by the difference in the magnetizing direction between said rotary heads; and (c) discriminating means for outputting a plurality of binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas on the basis of an output of said detection means, one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 18

Dependent Claim 49 words

An apparatus according to claim 15, further comprising display means arranged to simultaneously make a display which indicates whether said information signals are recorded or not in at least two of said plurality of areas on the basis of said plurality of binary signals output by said discriminating means.

Claim 19

Dependent Claim 34 words

An apparatus according to claim 15, further comprising mixing means which is arranged to mix a reference signal of a predetermined frequency value with said information signals to be recorded by said transducing means.

Claim 20

Dependent Claim 36 words

An apparatus according to claim 17, wherein said detection means includes a detection circuit which is arranged to detect a component of the signals produced by said transducing means representing said reference signal within the signals.

Claim 21

Dependent Claim 162 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) a rotary head for recording and/or reproducing information signals individually in or from a plurality of parallel areas extending in the longitudinal direction of a tape-shaped record bearing medium, said head being arranged to trace said medium in such a manner as to obliquely traverse said plurality of areas; (b) designating means for designating one of said plurality of areas; (c) reproducing means for reproducing said information signal by using signals produced by the rotary head from said area designated by said designating means; and (d) discriminating means for outputting a binary signal which indicates a recording condition of one of said plurality of areas other than said designated area by using signals produced by said rotary head during the operation of said reproducing means, one level of said binary signal indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 22

Dependent Claim 162 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) a rotary head for recording and/or reproducing information signals individually in or from a plurality of parallel areas extending in the longitudinal direction of a tape-shaped record bearing medium, said head being arranged to trace said medium in such a manner as to obliquely traverse said plurality of areas; (b) designating means for designating one of said plurality of areas; (c) reproducing means for reproducing said information signal by using signals produced by the rotary head from said area designated by said designating means; and (d) discriminating means for outputting a binary signal which indicates a recording condition of one of said plurality of areas other than said designated area by using signals produced by said rotary head during the operation of said reproducing means, one level of said binary signal indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 23

Dependent Claim 48 words

An apparatus according to claim 19, further comprising display means which is arranged to make a display which indicates whether said information signals are recorded or not in at least two of said plurality of areas on the bias of said binary signal output by said discriminating means.

Claim 24

Dependent Claim 69 words

An apparatus according to claim 19, further comprising: mixing means for mixing pilot signals of different frequency values with said information signals to be recorded by said rotary head; and control means which is arranged to control the position of said head and that of said medium relative to each other by using said pilot signals included in the output of said rotary head obtained from said designated area.

Claim 25

Dependent Claim 163 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) transducing means including a pair of rotary heads which are arranged to record and/or reproduce information signals individually in or from a plurality of parallel areas of a tape-shaped record bearing medium extending in the longitudinal direction of said medium by alternately tracing said medium in such a way as to obliquely traverse said plurality of parallel areas; (b) reproducing means for reproducing said information signals recorded in one of said plurality of areas by alternately using signals produced by said pair of rotary heads; and (c) discriminating means for outputting a plurality of binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas by using only signals produced by one of said pair of rotary heads, one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 26

Dependent Claim 163 words

A rotary head type recording and/or reproducing apparatus, comprising: (a) transducing means including a pair of rotary heads which are arranged to record and/or reproduce information signals individually in or from a plurality of parallel areas of a tape-shaped record bearing medium extending in the longitudinal direction of said medium by alternately tracing said medium in such a way as to obliquely traverse said plurality of parallel areas; (b) reproducing means for reproducing said information signals recorded in one of said plurality of areas by alternately using signals produced by said pair of rotary heads; and (c) discriminating means for outputting a plurality of binary signals which respectively indicate a recording condition of each of at least two of said plurality of areas by using only signals produced by one of said pair of rotary heads, one level of said binary signals indicating that said information signals are recorded, another level of said binary signals indicating that said information signals are not recorded.

Claim 27

Dependent Claim 25 words

An apparatus according to claim 22, wherein said pair of rotary heads have their magnetizing directions relative to their tracing direction different from each other.

Claim 28

Dependent Claim 52 words

An apparatus according to claim 23, further comprising mixing means for mixing a reference signal with said information signals to be recorded by said pair of rotary heads, said reference signal being of a frequency value sufficiently low not to be affected by the difference between the magnetizing directions of said heads.

Claim 29

Dependent Claim 34 words

An apparatus according to claim 24, wherein said discriminating means includes a detection circuit which is arranged to detect said reference signal included in the output of one of said pair of rotary heads.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-09-17	1994-03-19	1994-09-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-09-17	1998-03-19	1998-09-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-09-17	2002-03-19	2002-09-18	$7700.00	Window Closed / Lapsed

Device of multi-channel rotary head type having function to discriminate recorded state

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