Abstract: An agricultural machine includes one or more tires, a detector to detect a low pressure state in which a pressure of one of the tires is lower than a reference range or a high pressure state in which the tire pressure is higher than the reference range, and a controller to control an operation of at least one of the agricultural machine and an additional agricultural machine to be linked to the agricultural machine. One of the agricultural machine and the additional agricultural machine is a work vehicle that is capable of self-driving, and the other one is an implement to be linked to the work vehicle. The controller causes, in response to detection of the low or high pressure state, at least one of the agricultural machines to perform a specific operation that is different from an operation to be performed when the pressure is in the reference range.

Abstract: A method of recording and reproducing picture information, a recording medium on which the picture information is recorded, and an apparatus for playing such a recording medium are disclosed. A video format signal and a coded information signal are recorded in a first area of the recording medium. Graphic codes including picture information occupying at least one channel in a channel group of N (N being a natural number equal to or greater than 2) channels are inserted as a subcode in the coded information signal. Identification code information of at least one channel is recorded in a second area of the recording medium. When the recording medium is played, the identification code information is displayed and a picture signal corresponding to the graphic code occupying a channel designated by a picture channel command for designating one channel in the channel group is mixed with the video format signal.

Abstract: A tonearm control device in which tonearm position is detected by counting output pulses generated in response to a reversible electric motor output used for providing horizontal tonearm movement. A sensor is employed to detect non-recorded portions between recorded bands of music and also the initial position of a record disk. The sensor is supported on a supporting arm separate from the tonearm. The output pulses are counted in a counter of a RAM and the number of pulses corresponding to a distance between the sensor and the stylus of the cartridge is added in an adder in a CPU to the content of the counter. The output of the CPU is memorized in assigned positions of a memory in the RAM, the number of which corresponds to numbers of selected music. The contents of the memory are compared with the output pulses. When coincidence occurs, reproduction of the band of music is achieved. Hence, it is possible to change the cartridge independent of the sensor.

Abstract: A tonearm control device in which tonearm position is detected by counting pulses generated in response to the reversible electric motor output used for providing horizontal tonearm movement. A sensor is employed to detect non-recorded portions between recorded bands and also the initial band. Output pulses are counted in an up counter of a RAM and the counter is compared with a memory stored selection order. When coincidence occurs reproduction of that band is achieved. The counter is controlled to inhibit counting over areas previously scanned. Hence, it is possible to play bands out of order once the portions to be played are scanned.

Abstract: A record player capable of being installed into a wall comprises a housing integrally attached to the record player and provided with an opening in the front thereof so that the inner portion of the record player may be seen therethrough. An ilumination means comprising a light source and a light scattering plate is attached to the inner portion of the record player for purposes of illumination. The record player thus constructed is made automatically operable by a remote control means by employing a suitable tonearm position setting apparatus.

Abstract: The tonearm position setting apparatus for a record player is designed for use with a linearly movable tonearm base. A light source is movable substantially parallel to the movement direction of the tonearm base. A position setting device is interlocked with the light source and adapted to be moved so as to maintain a constant positioning relationship with the light source. A position detecting device is provided in the tonearm base. A semi-transparent mirror is positioned intermediate the loci of the light source and a pick-up stylus carried by the tonearm. The record disc is viewed through the mirror, and the light source is moved so that the virtual image thereof is positioned at the desired location for the commencement of playing the record disc. Thereafter, the tonearm base is moved until the position detecting device detects the position of the position setting device, at which point the tonearm with the stylus is lowered onto the record disc.

Abstract: A pick-up cartridge includes an armature being attached with a cantilever having a sound needle at an end composed of two pieces of high magnetic permeable material, each constituting a separate magnetic path, and a piece of magnetically high resistance material interposed between the two pieces of high magnetic material, a magnet provided in a relation opposing to an end of the armature, and an E-shaped yoke provided in opposition to another end of the armature with a detecting coil wound thereon, so that magnetic fluxes created by the magnet are firstly passed through one of the two pieces of the high magnetic permeable material, and on their return, passed through the other piece of the material.