Abstract: A circuit macro is provided for a VLSI circuit device having a semiconductor substrate and M1 and M2 metal layers defining a grid of M1 and M2 conductive lines extending in orthogonal directions. Numerous similar unit cells are arrayed side-by-side in rows extending in one direction and each unit cell spans an integral number of M1 conductive lines and an integral number of M2 conductive lines. The circuit device includes a plurality of circuit blocks each including two of the rows of unit cells. A plurality of wiring bays extend between adjacent circuit blocks, and each wiring bay includes a plurality of M1 conductive lines. The circuit macro includes a number of circuti blocks separated by wiring bays, and connections extend to unit cells of circuit blocks included in the macro.

Abstract: A macro generation method and a macro structural arrangement are provided for a VLSI semiconductor circuit device. A circuit macro is defined by a plurality of circuit blocks including at least one control block and an identified number of storage blocks. The control block includes a control section, a bit decoder section, a word decoder section and a work selector section. Each of the storage blocks includes a memory section, a bit selector section and a sense latch driver section. One of a plurality of stored predetermined bit decoders is selectively provided for the bit decoder section. A required number of storage blocks is identified responsive to the selected bit decoder for the selected number of bits per word. A required number of word selectors and memory array subsections is identified responsive to the selected bit decoder for the selected number of words.

Abstract: A VLSI chip has multiple annular rings of circuit cells, interspersed with annular wiring channels for interconecting the cells. Another wiring layer runs perpendicular to the rings. A central chip area contains all the I/O connections for the chip.

Abstract: A cell layout provides a practical masterslice design for random logic in any LSI FET technology. Each cell is capable of the order of about 20 different functions at any of several different power levels. Multiple cells can be combined to form standard macro functions.

Abstract: A VLSI chip has multiple annular rings of circuit cells, interspersed with annular wiring channels for interconnecting the cells. Another wiring layer runs perpendicular to the rings. A central chip area contains all the I/O connections for the chip.

Abstract: An air deflector for the rear wheels of vehicles such as trucks and trailers is disclosed. The deflector consists of a fairing suspended beneath the truck or trailer body immediately in front of the rear wheels and extending completely across the width of the body. The surface of the fairing is curved in both a lateral and a vertical direction to deflect impinging air and entrained water or snow around or under the wheels. In a preferred form, the device is formed with a plurality of generally vertical grooves angled toward the center line of the vehicle. The grooves direct impinging air downwardly and between the rear wheels. The air deflector serves to suppress splashing and spraying of water from the roadway and of rain or snow, and reduces aerodynamic drag to improve handling and reduce fuel consumption.

Abstract: A combined read-only and static read/write semiconductor memory is achieved by modifying the normal threshold voltage of some of the transfer FETs in an otherwise conventional static-memory cell. A read/write data bit is recovered from an addressed cell by applying a word-line voltage higher than both the threshold voltages. Read-only data is read from the same addressed cell by using a word-line voltage higher than one of the thresholds but lower than the other, then decoding the resulting bit-line voltages. An extension allows multiple read-only bits in a single cell by lowering the cell supply voltage when read-only data are addressed.

Abstract: An apparatus for reducing the aerodynamic drag of a refrigerated cargo carrying vehicle of the type having a front wall and a refrigeration unit on the front wall. The apparatus comprises a wind deflector configured to reduce the aerodynamic drag of the vehicle. The wind deflector has a forward wall with an opening which confronts a condenser of the refrigeration unit. A door is mounted on the forward wall for movement to open and close the opening.

Abstract: An apparatus for reducing the aerodynamic drag of a refrigerated trailer of the type having a front wall and a refrigeration unit on the front wall. The apparatus comprises a wind deflector configured to reduce the aerodynamic drag of the refrigerated trailer. The wind deflector is attached to the refrigeration unit for movement between a drag-reducing position and an access position in which the wind deflector is displaced from the drag-reducing position to provide improved access to the refrigeration unit.

Abstract: A self-contained, self-propelled air-conditioning system is provided for supplying air to structures, such as aircraft on the ground at airports. The aircraft are of the type having an inlet duct for conveying the air through the structure. The system includes a suitable truck having a frame or chassis mounted on wheels. The system also includes a diesel engine separate from the engine of the truck mounted on the chassis for supplying mechanical energy and an electrical generator mechanically connected to the diesel engine for changing the mechanical energy into electrical energy. A ventilation system is mounted on the frame and is electrically connected to the generator for moving air from the ambience to the inlet duct. A pair of independent refrigeration systems, each including a compressor, are mounted on the frame. The compressors are electrically connected to the generator. Each refrigeration system cools the moving air independently from the other refrigeration system.

Abstract: An illuminated enclosure mounted on the vertical front wall of a vehicle to reduce aerodynamic drag of the vehicle and to display a trademark, name, logo or the like. The major portion of the enclosure is first painted black so as to be substantially impervious to the passage of light. An illuminated area is convered by translucent paint or a decalcomania arranged to display the trademark, name or logo to be displayed. A lighting device is mounted on the front wall of the vehicle and connected to its electrical system. The lighting device has a plurality of spaced light bulbs arranged transversely across the midportion of the illuminated area. In use, the illuminated area is lighted from within the enclosure for observation by others as the vehicle moves along the highway.

Abstract: An aerodynamic enclosure for a refrigerated trailer. The enclosure fits over the upper portion of the front wall of the trailer, enclosing the factory installed refrigeration unit and motor. The enclosure has an upper front opening which fits around the air opening of the refrigeration equipment. A second front opening is covered with hinged doors to provide access to the refrigeration equipment. A pair of side openings are covered by hinged doors and provide access to the refrigeration controls and equipment. A top opening provides an outlet for air from the enclosure. The enclosure is symmetrical about its vertical axis and is aerodynamically contoured to reduce wind resistance and provide substantial economies in fuel consumption. An auxiliary door may be used to cover the upper front opening of the enclosure when the refrigeration equipment is not in use.