Abstract: An electronic device storage case for use in storing a substrate therein, includes a hollow box-shaped case body. The case body includes an open surface with an opening, a bottom surface opposite to the opening and a sidewall extending upright from the peripheral edge of the bottom surface, wherein the sidewall of the case body including a plurality of deformable ribs each having a slant surface inclined inwards toward the bottom surface, and wherein the substrate is introduced into the case body through the opening and slidingly moves along the slant surface of each of the deformable ribs to make pressure contact with the slant surface.

Abstract: A vehicle burglar alarm circuit includes a transformer having first to fourth taps, a center tap provided at a center point and output taps, wherein the number of coil turns between the first and second taps is greater than the number of coil turns between the third and fourth taps; and output taps connected with a sounding body. The circuit further includes a first and second power sources connected to the center tap, the second power source outputting a lower output voltage; a sounding body driving unit having first to fourth driving switches respectively connected to the first to fourth taps; and a controller which controls the sounding body driving unit. The first and second driving switches are alternately turned on/off when using the first power source, and the third and fourth driving switches are alternately turned on/off when using the second power source.

Abstract: An electronic device storage case for use in storing a substrate therein, includes a hollow box-shaped case body. The case body includes an open surface with an opening, a bottom surface opposite to the opening and a sidewall extending upright from the peripheral edge of the bottom surface, wherein the sidewall of the case body including a plurality of deformable ribs each having a slant surface inclined inwards toward the bottom surface, and wherein the substrate is introduced into the case body through the opening and slidingly moves along the slant surface of each of the deformable ribs to make pressure contact with the slant surface.

Abstract: A vehicle burglar alarm circuit includes a transformer having first to fourth taps, a center tap provided at a center point and output taps, wherein the number of coil turns between the first and second taps is greater than the number of coil turns between the third and fourth taps; and output taps connected with a sounding body. The circuit further includes a first and second power sources connected to the center tap, the second power source outputting a lower output voltage; a sounding body driving unit having first to fourth driving switches respectively connected to the first to fourth taps; and a controller which controls the sounding body driving unit. The first and second driving switches are alternately turned on/off when using the first power source, and the third and fourth driving switches are alternately turned on/off when using the second power source.