Patent application number | Description | Published |
20090004985 | Signal Processing Apparatus - In a PLL circuit, an oscillation frequency is quickly and accurately locked to a target frequency. There is provided a PLL circuit including a VCO ( | 01-01-2009 |
20110084750 | MODULATION APPARATUS AND TEST APPARATUS - Provided is a modulation apparatus that outputs an output signal having a designated amplitude and a designated phase, comprising a first variable delay section that outputs a first delayed signal obtained by delaying a periodic signal by a set delay time; a second variable delay section that outputs a second delayed signal obtained by delaying the periodic signal by a set delay time; an adding section that adds together the first delayed signal and the second delayed signal, and outputs the result as the output signal; and a setting section that sets the delay times for the first variable delay section and the second variable delay section according to the designated amplitude and the designated phase. | 04-14-2011 |
20110238337 | MEASUREMENT APPARATUS, MEASUREMENT METHOD, TEST APPARATUS AND RECORDING MEDIUM - Provided is a measurement apparatus for measuring an error of a modulation apparatus that outputs an output signal obtained as a sum of a first modulated signal output from a first modulating section and a second modulated signal output from a second modulating section. The measurement apparatus comprises a control section that causes the modulation apparatus to output an output signal having at least three different signal points; a measuring section that measures power of the output signal for each of the at least three signal points; and a calculating section that calculates at least one of an amplitude error and a phase error between the first modulated signal and the second modulated signal, based on the power of the output signal for each of the at least three signal points. | 09-29-2011 |
20110298557 | MODULATION APPARATUS, PHASE SETTING METHOD AND TEST APPARATUS - A modulation apparatus comprising a first modulating section that outputs a first modulated signal having a fixed amplitude and a set phase; a second modulating section that outputs a second modulated signal having the fixed amplitude and a set phase; an adding section that outputs the output signal as the sum of the first and second modulated signals; a calculating section that calculates two phases to be set respectively in the first and second modulating sections, based on designated amplitude and phase; an allocating section that allocates, for the first and second modulated signals, the two phases calculated by the calculating section such that the first and second modulated signals are each connected more smoothly; and a setting section that sets the phase allocated for the first modulated signal in the first modulating section and sets the phase allocated for the second modulated signal in the second modulating section. | 12-08-2011 |
Patent application number | Description | Published |
20080285216 | KEYBOARD CONNECTION CONFIGURATION AND ELECTRONIC DEVICE - An electronic device includes a device main frame portion, a display portion supported by the device main frame portion, a keyboard, and a casing on which the keyboard is disposed. The keyboard includes a plurality of operating keys, a placement base in which the plurality of operating keys are disposed, and a plurality of retaining portions disposed on at least portions of the placement base of the keyboard other than an outer circumferential portion. The keyboard is disposed on a casing. A plurality of connection retaining portions are provided on the casing, on which connection retaining portions the plurality of retaining portions of the placement base are retained, respectively. | 11-20-2008 |
20090102573 | MODULATION CIRCUIT - A modulation circuit is provided that generates an output signal obtained by modulating an input signal with a local signal and includes a local input section that receives the local signal and generates the local signal and an inverted local signal obtained by inverting the local signal, a signal input section that receives the input signal and generates the input signal and an inverted input signal obtained by inverting the input signal, a first multiplying section that outputs from a terminal that receives the input signal a first multiplied signal obtained by multiplying the local signal with the input signal, a second multiplying section that outputs from a terminal that receives the inverted input signal a second multiplied signal obtained by multiplying the inverted local signal with the inverted input signal, an output section that adds the first multiplied signal to the second multiplied signal and generates the output signal, and a transmission line that sends to the output section the first multiplied signal output by the first multiplying section and the second multiplied signal output by the second multiplying section and has an electrical length according to a predetermined frequency as the frequency of the input signal. | 04-23-2009 |
20090279238 | KEYBOARD CONNECTION CONFIGURATION AND ELECTRONIC DEVICE - A keyboard includes a keyboard unit and casing. The keyboard unit is rectangular and includes a first and second surface, the first surface including at least one key disposed thereon, the second surface including a protrusion portion that protrudes therefrom. The protrusion portion includes an engagement hole open toward a first direction that corresponds to a longitudinal direction of the rectangle. The casing includes a third surface on which the keyboard unit is mounted, the third surface including an insertion or through hole into which the protrusion portion is insertable, the casing including an engagement protrusion provided at a position opposed to the engagement hole of the protrusion portion that is inserted into the through hole, the engagement protrusion being engaged with the engagement hole of the inserted protrusion portion when the keyboard unit is moved in the first direction. A method of assembling the keyboard is also described. | 11-12-2009 |
20100062269 | LAMINATED PAPER PACKAGE MATERIAL AND METHOD OF PRODUCING THE SAME - To provide a laminated packaging material wherein a plant-origin material is used as the main material constituting a laminated paper packaging material for foods; a laminated packaging material being excellent in oxygen-barrier performance; a method of producing a barrier laminated packaging material in a small number of steps; a method of producing a barrier laminated packaging material whereby the structure of the laminate can be simplified without a need for a petroleum-derived adhesive and the laminate thickness can be reduced; and a method of producing a barrier laminated packaging material which is free from the occurrence of defects such as pinholes in spite of having a thin barrier layer. | 03-11-2010 |
20130107439 | ELECTRONIC APPARATUS AND COOLING METHOD THEREOF | 05-02-2013 |
20140118922 | ELECTRONIC APPARATUS AND COOLING METHOD THEREOF - An electronic apparatus includes a first unit having a first power switch for turning on/off a data processing part, a hard disk drive device, a power supply part and the electronic apparatus, a second unit that is separated from the first unit, is supplied with the power from the power supply part in the first unit, and has a drive device of a detachable recording media and a second power switch having the same function as that of the first power switch, and a cable for communicating data between the first unit and the second unit and supplying power from the power supply part of the first unit to the second unit. | 05-01-2014 |