Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
213 words
Data storage/retrieval apparatus, for writing data onto or reading previously-written data from a data storage unit, which apparatus includes: a moveable carriage (1) for supporting such a storage unit (2) within the apparatus; a write/read head (4) operable to write data onto or read previously-written data from the said storage unit (2) when it is being supported by the said carriage (1); carriage drive means (7) connected with the said moveable carriage (1) for bringing about movement thereof relative to the said write/read head (4), thereby to permit the position at which the write/read head operates on the storage unit to be varied; and control means (5) connected with the said carriage drive means (7) for applying thereto drive signals to control such movement of the carriage; characterised in that when the said carriage (1) is in a predetermined loading position in the apparatus, to permit loading of such a storage unit onto the carriage, the control means (5) are operable to detect deviations of the carriage from that position and to apply to the said carriage drive means such drive signals as will tend to cause the carriage to be moved to counteract such deviations, thereby to ensure that the carriage is in its predetermined loading position on completion of such loading.
Claim 2
Dependent Claim
117 words
An optical information recording and/or reproducing apparatus comprising: a movable means for carrying an optical record medium thereon; an optical head for projecting a recording and/or reproducing light beam onto the optical record medium placed on the movable means to perform information recording and/or reproduction; an optical record medium loading means for inserting the optical record medium into the movable means; a driving means for moving the movable means with respect to said optical head; and a control means for controlling said driving means such that said movable means is driven into a predetermined position by said driving means when said optical record medium is inserted into said movable means by said optical record medium loading means.
Claim 3
Dependent Claim
101 words
An apparatus according to claim 2, wherein said movable means includes a supporting means for carrying an optical card having a plurality of tracks which are extended in parallel with each other in a track direction, said driving means comprises a slider of a linear motor for moving said supporting means in the track direction, and said control means is constructed such that the supporting means is driven by an electromagnetic force into a predetermined card loading position at which the optical card is inserted into the supporting means during an operation for inserting the optical card into the supporting means.
Claim 4
Dependent Claim
97 words
An apparatus according to claim 3, wherein said control means comprises a linear encoder for generating pulses in accordance with the position of the supporting means, an up-down counter for counting said pulses generated by said linear encoder to produce a count value which represents a deviation of the supporting means from the card loading position, and a driving signal generating means for producing a driving signal on the basis of the count value of the up-down counter, said driving signal being supplied to said linear motor to move the supporting means into the card loading position.
Claim 5
Dependent Claim
72 words
An apparatus according to claim 4, wherein said driving signal generating means comprises a read only memory for storing data which represents mutual relationship between the count value of said up-down counter and a direction and an amount of the driving signal and producing a digital driving signal and a digital-analog converter for converting the digital signal into an analog driving signal, said analog driving signal being supplied to said linear motor.
Claim 6
Dependent Claim
42 words
An apparatus according to claim 5, wherein said read only memory stores data for stopping the supporting means at two standby positions at which the light beam is made incident on a portion on the optical card outside a data record region.
Claim 7
Dependent Claim
42 words
An apparatus according to claim 6, wherein said card loading position is set to one of said two standby positions which is situated at an upsteam position viewed in a direction into which the optical card is inserted into the supporting means.