US 3,940,800 A · Mode selecting device having a time delay between selection and establishment of an operating mode for tape recording and/or recording apparatus

Abstract

In a tape recording and/or reproducing apparatus in which various operating modes thereof are selected by selective actuation of corresponding push-buttons and the actual force for establishing the selected operating mode is derived from an electrically energized driver, such as a solenoid; the energizing of the driver in response to actuation of any one of the mode selecting push-buttons is delayed for a predetermined time following such actuation so that in the event of the fairly rapid, successive actuation of two or more of the push-buttons, the driver is energized only when the predetermined time has elapsed after the last actuation to establish only the operating mode corresponding to the last actuated push-button for avoiding damage to, or malfunction of the apparatus. Further, the presence and absence of a tape cassette on the apparatus is detected and energizing of the driver is permitted no sooner than the previously mentioned predetermined time after the presence of a cassette is detected, so as to avoid damage to the cassette and/or to a magnetic head or heads of the apparatus in the event that the push-button for selecting the normal forward, that is recording or reproducing, operating mode of the apparatus is actuated without a cassette positioned thereon. Finally, a pause control is provided for temporarily halting the transport of the tape when the apparatus is in its normal forward operating mode, and, when the pause control is actuated, energizing of the driver is permitted only with the apparatus in its normal forward operating mode.

Claims14

Dependent claims

A mode selecting device for a tape recording and/or reproducing apparatus:

comprising a plurality of push-button means, each selective actuation from a rest position to an active position for selecting corresponding operating modes of the apparatus;
a plurality of movable transmission member means respectively corresponding to said push-button means each mounted for movement from a normal rest position to an operative position;
electrically energized driving means for mechanically driving, when energized, the selected one of said transmission member means to cause the movement of said selected transmission member means to its operative position responsive to the selective actuation of the corresponding push-button means to its active position;
electrically controllable first switch means having ON and OFF states and being connected with said driving means for energizing the latter when said first switch means is in said ON state;
circuit means for controlling said first switch means including second switch means having a normal OFF state and being changed-over to, and retained in an ON state in response to actuation of any one of said push-button members, and delaying means having an initial condition for establishing said OFF state of said first switch means and being changed to an altered condition a predetermined time after said second switch means has been changed-over to said ON state of the latter for establishing said ON state of said first switch means;
and third switch means having a normal OFF state and being temporarily changed-over to an ON state for restoring said delaying means to said initial condition in response to actuation of any one of said push-button members.

3 more elements

A tape recording and/or reproducing apparatus comprising tape transport means for transporting a tape during various operating modes of the apparatus;

a plurality of push-button means, each selective actuation from a normal rest position to an active position for selecting corresponding operating modes of the apparatus;
a plurality of movable transmission member means respectively corresponding to said push-button means each mounted for movement from a normal rest position to an operative position;
electrically energized driving means for mechanically driving, when energized, the selected one of said transmission member means to cause the movement of said selected transmission member means to its operative position responsive to the selective actuation of the corresponding push-button means to its active position;
locking means operative to retain any one of said push-button members in said active position thereof and being released in response to the actuation of any one of said push-button members from said rest position thereof;
and means operative in response to actuation of any one of said push-button members from said rest position to said active position thereof for energizing said driving means with a predetermined time delay from the release of said locking means to the energizing of said driving means so that, in the event that two of said push-button members are actuated in succession within said predetermined time delay, said driving means is energized only to drive the one of said transmission members corresponding to the last actuated pushbutton member.

2 more elements

Dependencies are inferred from the claim text.

Mode selecting device having a time delay between selection and establishment of an operating mode for tape recording and/or recording apparatus

Life of this patent

Mode selecting device having a time delay between selection and establishment of an operating mode for tape recording and/or recording apparatus

Life of this patent

Abstract

Claims14