摘要:
A sun dial including a housing, a light detector mounted on the housing exposed to detect ambient light, a logic circuit mounted in the housing for processing the detected light for determining over a preselected period of time the average light detected by the light detector, and an indicator to indicate upon demand, the average light detected during the preselected period of time. A method for determining average light detected over a period of time by detecting light above a preselected threshold indicative of darkness, while noting the time of darkness, adjusting the period of time by subtracting the time of darkness from the period of time, calculating the average light detected over the adjusted period of time, and giving a visual indication of the average light detected.
摘要:
A non-acoustic alarm intended to equip a device supplying information such as time information. Such alarm includes motor means (24) which can be electrically driven and which are associated with a mass (26) adapted to be set in motion under the action of the motor means (24) in order to furnish a vibratory effect. Such alarm is furthermore characterized in that the motor means (24) are constituted by an electromagnetic motor (24a, 24b) fixedly mounted on a support (28) including elastic coupling elements (30) which are associated with said mass (26) which is designed to assume a quasi-linear oscillating motion relative to the electromagnetic motor (24a, 24b) when the motor is operated. The invention is particularly adapted for integration within a timepiece.
摘要:
A casing includes an elongated opening, an alarm device having a buzzer, a battery unit and a circuit unit to connect the battery unit to the buzzer, a time setting wheel and a conductive plate which has a first end connected to a first terminal of the battery unit, a second end abutting with the time setting wheel, a third end connected to a first contact point of the circuit board, and a fourth end above a second contact point of the circuit unit. The alarm device is actuated by a switch button assembly that includes a lever, which is made of a resilient, insulative material, pivotally mounted in the elongated opening and having a first end and a second end transversely passing the elongated opening to extend out of the casing. The first end of the lever includes an insertion piece, which can be inserted between the third end of the conductive plate and the first contact point of the circuit board to disconnect the same so as to stop the generation of alarm signal when the lever is moved in the elongated opening, and a pressing portion, which presses the conductive plate to actuate a snooze circuit when the lever is pivoted in the elongated opening. The inner peripheral edge of the elongated opening serves as fulcrum for the lever.
摘要:
An alarm clock having a case, an alarm signal generator and means for setting and cancelling an alarm circuit, said case being adapted to rest upon a rigid surface by foot means, the latter being capable of movement between two positions and projecting from the base of the case, said foot means being furthermore connected to said setting and cancelling means in such a way that, on the one hand, these latter are actuated by application of pressure to the case and that, on the other hand, the case shifts from a first position to a second position in response to said pressure, the foot means furthermore having means for returning the case of the alarm clock to its first position following application of said pressure, said foot means comprising auxiliary means permitting successive applications of pressure to the case to set and cancel the alarm circuit, and by the foot means being connected to means displaying the set and cancelled status of the alarm circuit of the alarm clock.
摘要:
A timepiece in which a vibration member starts vibration at an alarm time to let a person know the alarm time. The timepiece comprises a case having a shape of thin, small-sized wrist watch form, timekeeping circuit for counting a present time, alarm circuit for setting alarm time, detection circuit for detecting a coincidence a present time with the alarm time and the vibration member actuated at a set time to indicate time. The vibration member comprises a ultrasonic wave motor and an eccentric weight wheel driven by the ultrasonic motor and having its center of gravity deviated from its axis. The whole timepiece is vibrated by the unbalanced centrifugal forces produced by the turn of the weight wheel at the set time to indicate the time.
摘要:
A timepiece includes in addition to the conventional timekeeping circuits, high load, that is, high current circuits such as an alarm driving circuit and a lamp driving circuit. Low load, small current systems such as the oscillator, divider, display drivers and display for timekeeping are operated directly from the battery voltage source when the high load circuits are off. When the high load circuits are on, the low load circuits are disconnected from the battery and operate from an electric charge stored in a capacitor connected in parallel with the low load circuits. The high load circuits are driven intermittently at a high frequency to reduce power consumption and to permit recharging of the storage capacitor during off-periods. The drive frequency is sufficiently high such that an illumination lamp shows no flicker and brightness is controlled by duty cycle.
摘要:
An alarm signaling circuit for a timepiece including a volume control circuit having a variable volume controller which can be externally adjusted and a fixed volume setting means which determines a constant volume, a change over switch which selectively changes the controller and the setting means, and a change over control circuit which has a time section for measuring an alarm signalling time and which supplies a change over control signal to the change over switch after a predetermined passage of time from the start of alarm signaling. The alarm signaling circuit performs the alarm signaling action at a certain volume established by the variable volume controller during a first alarm signaling period from a start of alarm signaling till the predetermined passage of time and further performs the alarm signaling action at a fixed alarm volume determined by the fixed volume setting means in a consecutive second alarm signaling period.
摘要:
In the time detecting device of an alarm clock is provided with an hour gear wheel and an alarm gear wheel, each having an indication hand, engaging with a second hour gear wheel and a second alarm gear wheel respectively. An detecting cam plate is provided so as to be axially shiftable and continuously pushed and turned by the second hour gear wheel. A projection is formed on either the second alarm gear wheel or the detecting cam plate while a hole is formed on the other. When the respective phases of the projection and the hole coincide, the detecting cam plate is allowed to shift to actuate the alarm device.
摘要:
Disclosed is a transparent piezoelectric transducer comprising, at least, a transparent vibrator and at least one plate of a piezoelectric ceramic material sandwiched between a pair of transparent electrodes, said transparent vibrator being disposed so as to be vibrated by the piezoelectric ceramic material plate, said piezoelectric ceramic material being a ceramic material which is represented by a formula:Pb.sub.1-x La.sub.x (Zr.sub.y Ti.sub.z).sub.1-x/4 0.sub.3where x and y/z are set within a region enclosed with lines successively coupling points a-b-c-d-e-a in a phase diagram (FIG. 2 of the accompanying drawings) in which a ratio (y/z) between PbZrO.sub.3 and PbTiO.sub.3 is taken on an axis of abscissas, while an La concentration (x) is taken on an axis of ordinates (where x=8.4 and y/z=65/35 at a, x=6 and y/z=55.5/44.5 at b, x=6 and y/z=50/50 at c, x=12 and y/z=50/50 at d, and x=9 and y/z=65/35 at e). The transparent transducer is excellent in both the transparency and the electroacoustic response.
摘要翻译:公开了一种透明压电换能器,至少包括透明振动器和夹在一对透明电极之间的压电陶瓷材料的至少一个板,所述透明振动器设置成由压电陶瓷材料板振动,所述透明振动器 压电陶瓷材料是陶瓷材料,其由以下公式表示:Pb1-xLax(ZryTiz)1-x / 403,其中x和y / z设置在由相位图中连续耦合点abcdea的线所包围的区域内。 其中在横坐标轴上取PbZrO3和PbTiO3之间的比率(y / z),而在纵坐标轴处取La浓度(x)(其中x = 8.4和y / z 在a,x = 6和y / z = 55.5 / 44.5在b,x = 6和y / z = 50/50在c,x = 12和y / z = 50/50在d时= 65/35, 在e)x = 9,y / z = 65/35。 透明传感器在透明度和电声响应方面都非常出色。
摘要:
A timepiece which permits freely adjusting the level of sounds produced therein and given out thereof. In this timepiece, the sounds produced in a mechanical unit contained in a timepiece body are conveyed to the outside of the timepiece via a sound level adjusting means by utilizing mechanical vibrations or vibrations of air.