Seiko Epson Corporation

Yumi Sakamoto

Tsuneaki Furukawa

Naoshi Furuta

Kazuko Yoshida

A depth measuring device suitable for use in a dive watch is provided. A water depth measuring device comprising a pressure sensor, an A/D converter that converts the sensed signal of the pressure sensor into a digital value, the digital value corresponding to the start of water depth measuring being the initial digital value, a comparator that compares the initial digital value output by the A/D converter with a range of values defined by a first predetermined comparative value and a second predetermined comparative value, and determines whether the initial digital value falls within the range and produces a comparison result based thereon, an initial value setting circuit that, in response to the comparison result of the comparator, adopts the first digital value as an initial value corresponding to a zero meter depth when the initial digital value falls within the range defined by the first and second comparative values, and a water depth computer that computes a water depth value based on the initial value and the digital value derived from the A/D converter.

Water depth measuring device

An electronic clock for indicating a time including a source oscillator having a predetermined frequency, a frequency divider circuit for dividing down the frequency of the source oscillator, an input device for generating a continuous input signal when actuated, an input control circuit for detecting the input signal from the input device, an input time counting circuit for counting a period of time from the clock signal during which the input control circuit detects a continuous input signal from the input device, an input time detecting circuit for detecting when the period of time counted by the input time counting circuit equals at least one predetermined value, and a setting increment/decrement control circuit to establish successive predetermined periods of time determined by at least one predetermined value, the rate at which the set time is incremented or decremented is varied in each predetermined period of time by changing a value of a unit of time to be added to or subtracted from the set time.

Electronic clock and time setting method

An electronic alarm clock including a clock timing circuit for counting the basic time, an alarm time setting circuit for setting an alarm time and an alarm time storing circuit storing said alarm time. The electronic alarm clock also includes an alarm coincidence detecting circuit for detecting the coincidence between the basic time and the alarm time stored in said alarm timing storing circuit, an alarm setting/resetting circuit and an alarm sounding control circuit for causing an alarm sounding circuit to sound when said alarm setting/resetting circuit is set and said alarm coincidence detecting circuit detects the coincidence between said basic time and said alarm time.

Electronic clock with alarm and method for setting alarm time

An apparatus for audibly outputting a series of numbers represented by words and divided into blocks includes a voice data memory group for storing voice data. The voice data memory group includes a commonly used memory for storing voice data which may be utilized for any of the blocks, word ending memory for storing voice data corresponding to word endings which have a distinct intonation dependent upon for which block they are to be used and a block only memory for storing block specific voice data. A block voice selecting unit selects the memory from which the voice data is to be output from among the common use memory, word ending memory and the block only memory in accordance with the block type and the number to be output.

Apparatus for electronically outputting a voice and method for

A timepiece includes an audio output device operable for announcing a plurality of different audio functions including stopwatch, timer, automatic time of day, alarm and user requested time of day. Selecting circuitry chooses among the group of audio functions based on a predetermined prioritized order. The device is operable for announcing one or more of the audio functions at different levels of sound volume.

Growing community of inventors

Nagano-ken, Japan

Yumi Sakamoto