Abstract:
Disclosed herein is an electronic apparatus, including: a base chassis formed as a unitary member from a transparent material and having two faces positioned on the opposite sides to each other and individually formed as first and second mounting face sections; a display unit having a display panel thereon and attached to said first mounting face section; a control circuit board attached to said second mounting face section; a rear cover attached to said second mounting face section and configured to cover said control circuit board; a device mounting board having a semiconductor light emitting element disposed thereon; and a luminous lamp section formed at a position of said base chassis on the outer side of said display unit and configured to receive and emit light having been emitted from said semiconductor light emitting element and passed through the inside of said base chassis.
Abstract:
Disclosed herein is a light receiving apparatus, including: a light receiving section including a light receiving element; a transparent part; and a light guiding part inserted in the groove; the groove having, on the front face side, a side face formed as an arcuately curved face convex toward the front face side and having the same shape in any cross section perpendicular to the front face and also to the depthwise direction of the groove; the light guiding part having a side face opposing to the side face of the groove on the front face side and formed as an arcuately curved face which is convex toward the front face side in a state wherein the light guiding part is inserted in the groove and which has the same shape in any cross section perpendicular to the front face and also to the depthwise direction of the groove.
Abstract:
A resonator is arranged in an intake system including a pipe section for partitioning an intake port from an intake passage that communicates the intake port with a combustion chamber of an engine, the resonator including: a branch pipe having one end branching to the pipe section and the other end closed so that a silencing chamber is defined therein; and at least one partition wall for partitioning the silencing chamber into at least one pneumatic spring chamber, the partition wall having a natural frequency lower than the frequency of silencing target sound of intake noise propagated from the intake passage.
Abstract:
An engine cover mounting structure comprising an engine member and an engine cover, wherein a plurality of portions to be fixed to which fixing portions provided on the engine cover are mounted are provided so as to be situated below an upper surface of a cylinder head cover of the engine member. In addition, a positioning portion is provided on the engine cover. Then, in a state where a base fixing portion is mounted or temporarily mounted to a base portion to be fixed, while the other fixing portions are not mounted to the other portions to be fixed, when the engine cover revolves about the base fixing portion, so that the positioning portion is brought into abutment with a surface of the engine member, the fixing portions other than the base fixing portion are disposed at positions facing the portions to be fixed, respectively.
Abstract:
An air intake apparatus has an air intake port opening outside, and an air intake path communicating the air intake port with a combustion chamber of an engine. For suppressing noise getting out from the air intake port, with respect to walls partitioning the air intake path, an opening is provided at a part of said walls corresponding to an antinode region of resonance mode of standing wave in a full length of the intake path, or at a part of noise pressure level being high in the intake path. The opening is closed with a permeable member and a noise insulating wall is disposed outside the permeable member for suppressing emission of transmitting noise passing through the permeable member. member. Alternatively, a vibration control member for suppressing face-vibration of the permeable member and reducing radiant noise from the permeable member is provided instead of the noise insulating wall.
Abstract:
A resonator is arranged in an intake system including a pipe section for partitioning an intake port from an intake passage that communicates the intake port with a combustion chamber of an engine, the resonator including: a branch pipe having one end branching to the pipe section and the other end closed so that a silencing chamber is defined therein; and at least one partition wall for partitioning the silencing chamber into at least one pneumatic spring chamber, the partition wall having a natural frequency lower than the frequency of silencing target sound of intake noise propagated from the intake passage.
Abstract:
A resonator comprises a housing arranged in an intake member for defining an opening to communicate with an intake passage and a volume portion to communicate with the opening portion, a movable partition which can change the volume of the volume portion, and a movable cover associated with the movable partition for changing the opening area of the opening portion.
Abstract:
An automatic gain control circuit has a tuner for amplifying and IF signal according to an increase or decrease in AGC voltage and outputting it therefrom, first and second detectors for increasing a first control voltage and lowing a second control voltage, respectively, a selector switch for selecting either the first detector or the second detector as a destination to output the IF signal, and a voltage converting circuit for outputting the corresponding AGC voltage therefrom. When the IF signal is inputted to the second detector, the second control voltage is outputted to the tuner, whereas when the IF signal is inputted to the first detector, a voltage corresponding to an increase or decrease in the voltage corresponding to the difference between the maximum voltage outputted from the second detector and the first control voltage is outputted to the tuner.
Abstract:
An information recording and/or reproducing apparatus for recording data onto and/or reproducing data from a recording medium such as a magnetic disk, a magnetooptic disk, or the like by irradiating a laser beam emitted from a light source such as a semiconductor laser onto a desired track of the recording medium through an optical system, wherein the apparatus includes a single processor for executing an input/output control of data for the apparatus and a servo process of the laser beam by interrupting the servo process between the input/output control at every predetermined period. The processor switches a precision of the servo process in accordance with a predetermined situation such as a change in operating mode.
Abstract:
An access of a device for writing or reading information from/to a desired region is performed in the following manner on an information recording medium on which a plurality of tracks are spirally formed. The recording medium is rotated and an arrival position of the writing/reading device is estimated when the device is accessed to a track on which the desired region exists. If the estimated position lies within the desired region, the writing/reading device is caused access to the track on which the desired region exists. If the estimated position is located after the desired region, the writing/reading device is caused to access one-preceding track of the track having the desired region.