Canon Kabushiki Kaisha

Nec Corporation

Nec Electronics Corporation

Hideaki Uemura

Fumio Ichikawa

Masatoshi Kato

Yozo Tobo

Tatsuya Saito

Jun Azuma

Kenji Hibino

Yasuhiro Tonda

Junichi Yamada

Hidetoshi Ozoe

Hiroshi Haruyama

Shinsuke Tsuruoka

A voltage generator for nonvolatile memory that generates an applied voltage to be applied to a nonvolatile memory includes a first voltage generator to generate a first voltage corresponding to the applied voltage, a reference voltage generator to generate a reference voltage, a comparator to compare the first voltage with the reference voltage and output a boost operation control signal according to a comparison result, and a booster to generate the applied voltage in a pulse-like voltage waveform by starting or stopping boost operation based on the boost operation control signal. The applied voltage corresponding to the first voltage upon inversion of the boost operation control signal is varied within one pulse-like voltage waveform by varying one of the first voltage and the reference voltage.

Voltage generator for nonvolatile memory and writing and erasing method of nonvolatile memory

According to one embodiment, a master-slave flip-flip circuit (MS-FF) (,) includes master input transfer gate (,) connected to the input of a master latch portion (,) and a slave input transfer gate (,) connected to the input of a slave latch portion (,). A clock generating circuit (,) includes a first inverter (,-,) that provides an inverted clock signal CB,and a second inverter (,-,) that provides a non-inverted clock signal C,. The clock signals C,and CB,are provided to the slave input transfer gate (,). The clock signals C,and CB,are further provided to the master input transfer gate (,) through clock lines (,-,) and (,-,) which have a parasitic resistances R,and R,. The parasitic resistances R,and R,delay the C,and CB,signals and thereby provides a delayed inverted clock signal CB,and a delayed non-inverted clock signal C,to the master input transfer gate (,). By utilizing a clock generating circuit formed out of two inverters (,-,) and (,-,), the area of the MS-FF (,) can be reduced, and a smaller sized MS-FF circuit can be realized.

Master-slave type flip-flop

In a semiconductor device, a lead frame includes normal leads terminating before an edge of a semiconductor chip and LOC leads extending over the semiconductor chip. The semiconductor chip is fixed to the lead frame by adhering the semiconductor chip to stitch sections of the LOC leads through an adhesive tape. A power supply pin and a ground pin are formed of LOC leads having a plurality of stitch sections, which are connected to a plurality of corresponding bonding pads, respectively, through bonding wires. On the other hand, signal pins are formed of normal leads which are connected to corresponding bonding pads through bonding wires, respectively.

Chip-lead interconnection structure in a semiconductor device

There is disclosed a laser beam output optical unit adjustment method and apparatus, which can perform inspection and adjustment of a laser beam unit and a laser scanning optical system including this unit used in a laser beam printer within a short period of time. The laser irradiation position is roughly adjusted using a wide-field position detector, and focus rough adjustment is then performed using a narrow-field position detector. Thereafter, fine adjustment of the irradiation position and focus fine adjustment are performed using the narrow-field position detector. An image enhancement tube capable of a high-speed gate operation is arranged in a laser scanning region, and instantaneously takes a beam spot during laser scanning. An image processing devices analyzes the taken spot image, and a calculation unit calculates various data.

Inspection/adjustment method and apparatus for laser beam output optical

An optical apparatus (23) for emitting light is constituted by a fixation holder (8) fixed to a predetermined positioning fixation jig via a fixation plate (8a), a lens-barrel (10), fitted on a cylindrical portion of the fixation holder (8) via an annular gap (19), and formed of a transparent material, for holding a collimator lens (2), and a semi-conductor laser light source (1) fitted under pressure in the fixation holder (8). An ultraviolet curing adhesive (18) is uniformly filled in the gap (19). Before the ultraviolet curing adhesive (18) is cured, the lens-barrel (10) is movable in an optical axis direction (Z) and in two-dimensional directions (directions of arrows X and Y) on a plane perpendicular to the optical axis direction (Z) with respect to the fixation holder (8).

Optical apparatus for emitting light and automatic adjustment apparatus

A print evaluating apparatus includes an image reader having a plurality of photoreceptors to read a print pattern line by line; a relative movement causing device for imparting relative movement between the print pattern and the image reader in a direction different from a direction in which the photoreceptors are arranged; and a processor for effecting plural operations in parallel for plural evaluation items for image signals corresponding to the print pattern supplied by the image reader during the relative movement, and for effecting evaluation on data provided by the operations.

Growing community of inventors

Tokyo, Japan

Hideaki Uemura