摘要:
An apparatus and method thereof wherein a portable computer system or personal digital assistant generates a visual signal in response to an occurrence of a programmed event. For example, the portable computer system can use a light emitting diode to visually signal an alarm at a specified time. The visual signal can be varied in order to indicate the type of event associated with the alarm. In one implementation, the visual signal blinks at a particular rate depending on the type of event. In another implementation, the visual signal blinks a prescribed number of times or according to a particular pattern depending on the type of event. When enabled, the visual signal is generated in lieu of an audible signal, thus providing to the user a silent alarm that does not disturb other people in proximity, such as in a meeting, a theater, or some other gathering.
摘要:
a plurality of bi-color lights is mounted to the stern of a ship such as an aircraft carrier. The lights are arranged so that they are visible from an escort ship that is following the aircraft carrier while attempting to maintain a selected range and angular position relative to the aircraft carrier. The lights are arranged such that the number of lights of each color that are visible from the escort ship depends upon the angular position of the escort ship relative to the aircraft carrier.
摘要:
A sensor alarm which provides an alarm notification of a dangerous condition within a monitored space, further provides notice of its current state condition, from among several states, with distinct message comprising a combination of encoded audible and visible mnemonics annunciations.
摘要:
A strobe alarm system which includes multiple normally self-timed strobe circuits connected in a common loop to a fire alarm control panel, and a sync control circuit, which may be incorporated in the fire alarm control panel, for causing the strobes to flash in synchronism at a predetermined rate which will insure that a person viewing the multiple strobes would not see flash rates higher than the predetermined synchronized rate, which is preferably less than five flashes per second. The sync control circuit does not interfere with the supervision functions of the alarm system, and when an alarm condition is present it supplies power to the strobe circuits which it then interrupts once every flash cycle to cause a sync trigger circuit in each strobe to fire its flashtube, and to reset the internal timer of each strobe to ready it for arrival of the next sync signal. Each strobe circuit in the loop includes a resettable timer for recycling its own flash unit in a non-synchronous fail-safe mode in case the sync signal should fail to appear within a finite period following the last previous flash. That is, normally the strobes are all fired at the same time in response to sync signals applied to their sync trigger circuits, but in the event the sync signal is lacking the strobes will continue to flash, each at a rate determined by its internal timer.
摘要:
An instrument cluster has a rigid printed circuit board (3) on the rear side of a basic (1). On the front side, the basic body (1) is partially covered by a supporting body (10) which is connected in an articulated manner to the basic body (1). A flexible printed circuit board (12) extends over the front side of the basic body (1) and the supporting body (10), the printed circuit board having a connecting region (13) which is deflected by a defined angle with respect to an edge region of the rigid printed circuit board (3) and is connected to this printed circuit board (3) by bow-type soldering (14) for example.
摘要:
A multi-optical-axis photoswitch incorporating a light emitting unit and a light receiving unit between which a multiplicity of optical axes exist. In the multi-optical-axis photoswitch, the ratio of the number of optical axes in which the quantity of received light exceeds a predetermined threshold value with respect to the number of all of optical axes is displayed by a plurality of display lamps disposed concentrically, in particular, by a bar graph. Thus, the operation can be indicated such that movement must be performed in a direction in which the value of the bar graph is increased.
摘要:
A first indicator has a display board, a pointer to point the display board, a light source to subject the display board to transmitted illumination, and pointer driving means to drive the pointer. A housing stores the first indicator, a second indicator formed of a first light emitting type indicator, and a third indicator formed of a second light emitting type indicator. The viewer sees the second indicator reflected upon a semi-transmitting reflection board, the third indicator through the semi-transmitting refection board, and the first indicator not through the semi-transmitting reflection board.
摘要:
A system for stripping an optical fiber includes a source air, and means for generating very short bursts of air. A heater heats the bursts of air to a temperature sufficient to remove the outer coating from an optical fiber, while maintaining the air isolated from the heat source. The heater includes a heater core that includes a heat generating element such as a conductive filament, and a heat chamber enclosed within the heater core. A spiral-shaped air conduit surrounds the outer surface of the heater core, and communicates with the heat chamber. Upon injection of air into the conduit, heat is transferred to the air from the heat generating element while the air flows through the air conduit and into and out of the chamber. A single burst of heated air removes the outer coating of an optical fiber, within less than one second.
摘要:
An image forming apparatus includes a display block made up of two pairs of lamp units of different colors alternating with each other. The display block has its top divided into four rectangles by a cross; nearby rectangles are different in color from each other. The four sides of the display block each are vertically divided into two portions. The two portions of each side respectively share the same colors with the rectangles of the top contiguous therewith. The apparatus allows a person to see its operating status being indicated by the display block anywhere in any direction without any dead angle.
摘要:
A combination meter for a vehicle has a speedometer, a tachometer, a gauge and a warning light disposed in a casing. A holding panel having an annular wall and a rear wall is attached to the casing so that the speedometer, the tachometer, the gauge and the warning light are exposed through openings formed in the rear wall. The speedometer analog-displays a speed of the vehicle using a dial and a pointer and digital-displays a speed of the vehicle using an EL panel disposed at a front side of the dial and attached to the holding panel. An EL drive circuit for driving the EL panel is mounted on an outer surface of the annular wall of the holding panel. As a result, the EL panel and the EL drive circuit are readily attached to the casing simultaneously when the holding panel is attached to the casing, thereby improving an efficiency in attachment and replacement of the EL panel and the EL drive circuit.