Rhone-poulenc Agrochimie

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hitachi-lg Data Storage, Inc.

Hitachi, Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Funai Electric Company Ltd.

Yasuhiro Wada

Hiroshi Kodama

Rikio Yamaguchi

Keisuke Umeda

Yoshiro Kashiwabara

Taizou Kusano

Koichi Watanabe

Takakiyo Yasukawa

Naohito Ikeda

Toshio Shoji

Hirotsugu Fusayasu

Yoshio Ohtsuka

Toshiya Akagi

Masato Tobinaga

Masafumi Kumoi

Shinkuro Fujino

Yasunori Nakai

Shouichi Mimura

Shun Yamaguchi

Akihiro Aoyama

Jin Korekuni

Hideyuki Fujishima

Eisuke Ishibashi

Shinya Shimizu

There is provided an interchangeable lens mountable to a camera body. The interchangeable lens includes a zoom lens which can change a field angle of a subject image, a receiving unit for receiving sound pickup property information from the camera body, the sound pickup property information indicating sound pickup property of the camera body, and a lens controller for controlling drive of the zoom lens. The lens controller decides an available driving speed based on the sound collecting property information, the available driving speed being a driving speed settable to the zoom lens.

Interchangeable lens and camera body to which interchangeable lens is mountable

A circuit board is arranged on an end face of a lens barrel on a lens mount side and installed with an electronic circuit device, a plurality of connection terminals which are arranged in an electrically insulating state in the lens mount and serve to connect the electronic circuit device on the circuit board with an electronic circuit device inside a camera body, and a wiring member is for connecting the plurality of connection terminals with the circuit board, where the wiring member is provided with a ground connection section which is connected to a ground pattern of the circuit board and also electrically connected to a connection terminal that is to be a ground terminal among the plurality of connection terminals, and an extended wiring pattern is for electrically grounding the ground connection section on a metal portion of the lens mount.

Digital camera and interchangeable lens unit

A recording power adjustment process to adjust a recording power is carried out in each recording layer of a multilayered optical disc, and a shift test writing process to adjust the pulse condition of a recording pulse is carried out only with regard to some of the respective recording layers. Then, based on the processing result of the recording power adjustment process and the processing result of the shift test writing process, a processing result of the shift test writing process in each of the recording layers, to which the shift test writing process has not been performed, is predicted. Then, information is recorded on a corresponding recording layer of the multilayered optical disc while adjusting the pulse condition of the recording pulse based on the processing result of the shift test writing process or the prediction result.

Recording method and optical disc apparatus

In order to ensure recording quality while suppressing the adverse effects due to performance variations among apparatuses and disc radial positions on an optical disc, an optical disc apparatus according to the present invention performs, at the time of data recording, the steps of: acquiring a jitter value and &#x3b2; value from a reproduced signal based on laser light reflected from the optical disc in relation to a disc radial position; learning a &#x3b2; value when the acquired jitter value is a minimum as a target &#x3b2; value; and, if a jitter value acquired thereafter is larger than the minimum jitter value by a preset reference value or above, correcting recording power based on the magnitude relation and the difference between the &#x3b2; value associated with the acquired jitter value and the target &#x3b2; value or performing trial record processing.

Optical disc apparatus and data recording method thereof

There is provided an information recording and reproducing method and an apparatus for the same capable of optimizing the shift adjustment of a recording pulse recorded in an optical disk even at the time of recording information on the optical disk at a high speed. The shift adjustment value of the recording pulse optimized at a low speed recording on an optical disk is multiplied by a constant value to be taken as the optimum shift conditions of the recording pulse at the high speed recording.

Method of recording information on and reproducing information from optical disk and apparatus for the same

An optical disk apparatus comprising a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time. The optical disk apparatus comprises a selector to switch over the control systems, and area dividing means to manage the divided areas, and while switching over CAV control and CLV control, records data, and varies the divided areas or the number of divided areas in CAV control according to recording capacities, so that lower power consumption and higher-speed access can be realized.

Optical disk recording method employing a plurality of recording areas and apparatus therefor

An optical disk device that has a tilt correction unit for performing tilt correction to incline the optical axis of laser light based on a tilt between the recording layer of an optical disk and the optical axis of said laser light. The tilt is detected when the optical disk is activated. The optical disk device has a memory for storing a difference in temperature in accordance with the amount of the detected tilt. The difference in temperature is utilized for updating the tilt. The optical disk device engages said tilt correction unit to update said tilt, when a difference in temperature between activation of said optical disk and writing/reading information onto/from said optical disk is detected and when the detected difference in temperature has exceeded the stored difference in temperature corresponding to the amount of the detected tilt.

Optical disk device

A ratio of an erase current and a peak current when starting recording is defined as K=iER/iPK (S), and iER11 is set equal to K&#xd7;iPK, and an ideal value iERof an erase current that should be increased according to a temperature change is determined (S). A value obtained by subtracting a current iBT at a bottom level emission intensity when starting recording from a current at an erase level emission intensity after the temperature rises is defined as iER. By measuring this iER, an ideal value iERof the erase current is subtracted from iER, and the resultant current is defined as iBT(S). This iBTis set as an adjustment value of the bottom current, and a value obtained by adding this adjustment value to a bottom current when starting recording is set as a bottom current after change.

Optical disk device and emission current adjusting method for the same

A bi-phase mark reproduction apparatus which reduces an error rate of demodulated data by half and improves demodulation ability of ATIP and an optical disk drive device are provided. The bi-phase mark reproduction apparatus includes a data conversion unit which takes out a synchronous code portion, a data portion and an error detection code portion from a bi-phase mark input signal by means of a data separating signal and demodulates data of the data portion and the error detection code portion. The data conversion unit includes a pattern retrieval unit which detects a predetermined error pattern contained in the data portion and a conversion table which decodes the error pattern in accordance with a replacement rule based on bi-phase mark modulation.

Bi-phase mark reproduction apparatus and optical disk drive device with the same

The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-arylpyrazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoromethylsulfmylpyrazole, and an insecticidal method which comprises applying the composition.

Synergistic pesticidal composition of pyrethroid and N-phenyl-pyrazole

The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-arylpyrazole compound such as 5-amino-3-cyano-1-(2,6-dichloro)-4-trifluoromethylphenyl)-4-trifluoromethylsulfinylpyrazole, and an insecticidal method which comprises applying the composition.

A drive control apparatus for a stepping motor comprises a driving circuit connected to the stepping motor for driving the same, and a controller for outputting a control signal to the driving circuit so as to set up a W1-2 phase driving mode when the stepping motor is in an acceleration and deceleration states, and so as to set up 1-2 phase driving mode when the stepping motor is in a constant-speed state.

Drive control method for stepping motor

The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-aryldiazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl-4-trifluoromethylsulfinylpyrazole, and an insecticidal method which comprises applying the composition.

The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-aryldiazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl-4-trifluoromethyls ulfinylpyrazole, and an insecticidal method which comprises applying the composition.

Growing community of inventors

Osaka, Japan

Yasuhiro Wada