Abstract: A wearable modular interface strap device for supporting multiple module units comprising a flexible strap with a plurality of electrically connected nodes acting as docking points to serial bus interface and mechanically connect removable modules, with the strap being 10 mechanically lockable in a loop by a clasp containing hub and host circuitry to enable network communication between modules and to a universal connector plug for recharging and data-exchange when the connector plug has been released from the clasp. Said strap containing a plurality of electrical wires between control circuitry and nodes and arranged to be wearable as a wristband, alternatively as a wrist device that when opened forms a curved handset with audio input and outputs at alternate ends, or arranged in a necklace configuration.

Abstract: In a local time amendment system, a navigation apparatus has a clock section to count a clock time (UTC, Universal Time Coordinated) in units of hours, minutes, and seconds based on an atomic clock of a GPS Satellite. In contrast, a cellular phone acquires information on local time wirelessly via a base station, which is connected to a mobile radio communication network. The information on local time signifies a local time of each administrative area, for instance, a country, state, city, etc. The navigation apparatus acquires data in units of hours indicated by an internal clock section of the cellular phone to thereby amend the clock time counted by the clock section with respect to the units of hours to thereby amend the clock time, which is indicated by the clock section, to the local time accurate with respect to units of hours in addition to units of minutes and seconds.

Abstract: A combination watch and cell phone foldable onto each other for use around a wrist of a user. The combination includes a watch, a cell phone, a band, and apparatus selectively maintaining the watch and the cell phone folded against each other and the band. The band is engages around the wrist of the user. The watch is operatively connected to the band so as to form a wristwatch. The cell phone is operatively connected to the band.

Abstract: A method for setting an alarm in a mobile communication terminal. Different alarm times can be set for different alarm days according to an alarm time and an alarm day set in each of a plurality of alarm setting formats. An alarm setting table including the plurality of alarm setting formats is displayed and edited on a screen, thereby simplifying an alarm setting process and allowing a user to conveniently check entire alarm information.

Abstract: A wristwatch comprising a main unit associated in removable manner with a seating prepared on a support and/or positioning element, which is in turn associated with an attachment element to attach it to the user's wrist. The main unit incorporates both the normal functions of a watch and also the function of an earphone.

Abstract: The disclosure describes an alarm clock and a system for presenting pre-selected information from a website via the internet. The alarm clock includes a snooze button, a visual display, a speaker, a port for connecting to the internet, and a timer device for activating downloading of pre-selected information from a website through the port, and for activating the presentation of the pre-selected information on the visual display and the speaker.

Abstract: The present invention concerns a water-resistant portable apparatus including a case in which there is mounted an electroacoustic transducer separated from an inlet cavity in a water-resistant manner by a deformable membrane. This inlet cavity is arranged in said case in direct communication with the exterior. The electroacoustic transducer and the inlet cavity are arranged collaterally such that at least one part of said transducer, respectively of the cavity, of a determined thickness is arranged in the same slice of the case and in that an acoustic channel connects the transducer to the membrane to transmit acoustic vibrations.

Abstract: In a foldable portable device, a detecting unit detects folding (closing) or unfolding (opening) of the portable device. When the portable device is folded, a first timer starts counting time. The first timer can count time until a first time. When the portable device is unfolded, a second timer starts counting time. The second timer can count time until a second time. The operation of detection unit is invalidated based on the time counted in the first and the second timers.

Abstract: A plurality of plane antennas 6-1 and 6-2 are embedded in the equipment body section 1, and every time occurrence of reception failure is detected by the internal electronics circuit, switching between the antennas used is established. Spatial diversity through selectively switching and using the plurality of plane antennas 6-1 and 6-2 is performed. Through this, even when reception sensitivity of one antenna in use deteriorates, good reception sensitivity can be gained through switching to another antenna. Thus, this can avoid inconvenience where calls are cut off.

Abstract: A watch of the communications apparatus is worn on a user's wrist by bands. A support member pivoted on the band is then turned so as to extend in the transverse direction of the bands. A speaker unit is provided on the support member so as to face in a transverse direction of the band while a microphone unit is disposed on the support member so as to face in a direction perpendicular to a surface of the band. When a user communicates with the other party, the speaker unit provided on the support member is directed toward the user's ear. This causes the microphone unit provided on the support member to be directed easily toward the user's mouth. Alternatively a hinged lid is provided the lid carrying a key-in unit or a display and a speaker unit.

Abstract: A system and method that provides data messages to a passive device. A passive device, for example watch, is registered together with the telephone number of a cellular telephone of a subscriber to the data message service. Since the cellular telephone periodically transmits a beacon signal, the wireless network knows its cell location. Accordingly, the system determines the cell location of the cellular telephone and establishes a communication of the subscribed data to the watch via the local cellular provider for the same cell location as that of the subscriber's cellular telephone.

Abstract: A clock includes a publicly accessible distributed network, a user interface, and a timing device or a personal computer. The timing device is configured to track universal time and harvest user selected media including text, graphics, sound, video and/or multimedia. The timing device plays the selected media in a programmed order with commercial media at a launch time. After harvesting the publicly accessible network, the media is played in a progressive sequence before the personal computer or the timing device interfaces a Site.

Abstract: An apparatus and method for calculating and displaying local time for a plurality of cities in the world. The apparatus includes a memory for storing Greenwich mean time (GMT) information for each of the plurality of cities. The apparatus sets a reference time and counts the time that elapses from when the reference time is set. The apparatus calculates a local time of a city selected by a user, which is based on a difference between the GMT of the selected city and the GMT of a present location of the apparatus, the reference time and the counted elapsed time. The reference time may be either a time set by the user or a system time acquired from a signal generated from a remote system.

Abstract: The subject device is an alarm mechanism having a voice message or other sound input wherein the mechanism incorporates a taping mechanism to receive and store voice or other audio sounds to be subsequently or simultaneously projected audibly as a signal to awaken the user of the alarm at a designated time comprising generally a caller mode coupled to a recording controller to activate an audio recorder which is in turn activated by a pre-set timer to project the recorded sound.

Abstract: This invention provides a network system and a information communicating device has a time correction ability, wherein a built-in clock of each of the plural devices connected with a communication network is capable of being corrected using a GPS time data without raising a processing load of a receiving device of the GPS data. In this system a car navigation device 12 receives a data from a GPS satellite, extracts a time data from the received data and transmits the time data attached with a time required within the device itself to a portable telephone in a form of an E-mail. The portable telephone that received the time data from the car navigation device corrects its own time generating means, and transmits the time data with attaching a required time for processing within the portable telephone. In this way, the time data attached with the required time for processing within each corresponding device is transmitted to a following device one by one.

Abstract: A child's wristwatch type device featuring simple safety and security communications capability. The device will allow a child to call one of several preset numbers, including 911, with a single push of a button, thereby providing peace of mind for both parents and child. The device is unique in that a child cannot run up a large phone bill with call to friends, as they might tend to do with a ordinary cell phone. The invention essentially comprises a wristwatch like housing with a matching lid attached along the backside by spring loaded hinge means. A wireless telephone means with retractable antenna is mounted in the base housing, along with a rechargeable battery. In the closed position, a digital clock and small speaker is exposed on the top side of the lid for providing voice or ringer sound. When the lid is open, a circular cover plate forms the top surface of the base housing and has several push buttons, a microphone, and an ON/OFF switch.

Abstract: A wearable electronic device is offered in which sound radiation and sound reception operations of an electroacoustic converter are performed reliably. The wearable electronic device can be a personal digital assistant (PDA) having an enclosure portion that is worn on a user's wrist in use. The electroacoustic converter is incorporated in the enclosure portion. Sound radiation and reception holes extending through the wall of the enclosure portion are formed between the inner surface and the outer surface of the enclosure portion. The inner surface surrounds the converter, while the outer surface makes contact with the user's wrist when the device is worn. The enclosure portion has recessed or convex portions on or in portions of the outer surface around the openings of the sound radiation and reception holes to form acoustic signal propagation paths.

Abstract: A wrist-worn phone is disclosed which includes a main housing with a front surface and a rear surface, the rear surface including speaker holes, the front surface having a display. The wrist-worn phone further includes a first strap attached to a first end of the main housing, the first strap having an outer end. A second strap may be attached to the second end of the main housing, the second strap having an outer end, the outer end of the first strap for connecting with the outer end of the second strap. The second strap may be made from a shape retaining material for forming a generally elongated C shape such that the rear surface of the main housing is on an interior of the C shape. The wrist-worn phone may include an ear latch for hanging the main housing upon a human ear. A body-worn data storage device may include a plug mounted onto a strap of the device for insertion into a port of a computing device.

Abstract: A personalized alarm clock allows a user to receive a predetermined audio and/or image signal, or to place a predetermined telephone call to a selected telephone number at a predetermined time. The personalized alarm clock is generally configured in the form of a portable entertainment device, such as a portable AM/FM radio and/or CD/DVD device. The personalized alarm clock includes at least one input device, at least one output device, at least one input port, at least one output port, at least one telephone jack, an automatic telephone dialer, a central processing unit, at least one memory device, and a power supply. The personalized alarm clock is configured with upper and lower housings connected together by a hinge.

Abstract: A method and apparatus to receive selected audio content. According to one embodiment of the invention, an audio playback system is described. The audio playback system includes an audio content server and a device. The audio content server includes audio content to be selected for playback. The device calls the audio content server to request and receive an audio playback of selected audio content at a scheduled time.

Abstract: According to the present invention a radio communication device is presented. The device is operated by user input means. The user input means comprise a circular ring which surrounds a display. The ring is mounted for rotational movement and by movement of the ring the functions of the communication device are controlled and information is entered. The communication device is preferably a wrist watch phone or a wrist phone.

Abstract: A radiotelephone set in which a case housing a miniature microwave transceiver is strapped to the wrist of a user's hand, a microphone mounted on the strap being connected to the transceiver input whereby when the hand is raised to bring the microphone adjacent the user's mouth, the user can then transmit voice messages. An earphone placed within a finger thimble is connected by a cable normally retracted within the case to the transceiver output to reproduce messages received by the transceiver. To operate the radiotelephone set, the thimble carrying the earphone is pulled away from the case to extend the cable, the thimble then being mounted on the index finger of the hand. The hand is then raised so that the thimble can be inserted by the index finger into an ear of the user who can now hear incoming voice messages. When so raised, the hand acts to place the microphone on the strap adjacent the mouth of the user who can now send out voice messages.

Abstract: A wrist portable information apparatus has a case containing a circuit board having a wireless communication circuit for performing wireless communication and a voice processing circuit for performing voice processing. First and second straps are connected to the case to mount the case to a user's wrist. A speaker is disposed in one of the case and the first strap to output processed voice from the voice processing circuit, and a microphone is disposed in one of the case and the second strap to input voice to the voice processing circuit. A contact mechanism is provided with an electrically connected state which is changed in response to opening and closing of at least one of the first strap and the second strap. A detecting circuit detects opening and closing of the first strap or the second strap by detecting the connected state of the contact mechanism.

Abstract: A portable telephone assembly comprising first and second portions arranged to be mutually detachably interconnectable is disclosed. The second portion is arranged to be removably attachable to a user. The first portion comprises a body portion and an extendible portion movable between a relatively extended configuration and a relatively contracted configuration. The extendible portion is biased towards the relatively extended configuration, such that when the first portion is detached from the second portion, the extendible portion is urged towards the relatively extended configuration.

Abstract: An alarm clock radio is provided that handles downloaded audio files and streaming digital audio files. The alarm clock radio may have buttons and displays that allow the user to adjust various alarm clock radio settings. The user may also adjust settings remotely over the Internet or over an in-home network. The user may customize the audio content that is provided with the alarm clock radio. Advertisements may be provided to the user. The user may be provided with an opportunity to subscribe to a content service. Content such as Internet radio station content, e-mail, news and other audio content may be provided to the user from the service. The user may set reminders for particular times and dates using the alarm clock radio. The alarm clock radio may also have a telephone handset. The alarm clock radio may have buttons and knobs and may provide on-screen options that allow the user to tune to AM and FM and Internet radio stations and to control the operation of the alarm clock radio.

Abstract: The wristwatch (1) provided with a telephone device (3) able to receive and transmit messages broadcast by an antenna (4). The antenna (4) is integrated in a tongue (5) one (7) of the ends of which is attached to the wristband. The tongue can be arranged in a first position in which it runs alongside the wristband at least partly and is merged with it or a second position in which it is moved away from the wristband and stands upright in a plane containing the circle defined by the wristband when it is worn.

Abstract: A radio communication device is presented. The device is operated by user input means. The user input means comprise a circular ring which surrounds a display. The ring is mounted for rotational movement and by movement of the ring the functions of the communication device are controlled and information is entered.

Abstract: A radio handset assembly comprising: a wearable element; and a radio handset demountable from the wearable element and comprising a flexible portion which is deformable between a curved configuration and a straighter configuration for extending between the ear and mouth of a user.

Abstract: A wristwatch with a usable dial, fitted with keys, includes an electronic device to form a multifunctional wrist worn device. The structure of the wristwatch is such that there is enough space to regularly actuate each key with a finger. The part of the multifunctional device providing the time can be shifted to free up the device's body. In particular, this device is characterized by the fact that the device's body, freed up in this way by the shift of the watch, contains, on its periphery, a number of keys that make it possible to easily actuate the electronic device with a finger. This simple device makes it possible to cover and to mask the electronic device's keys when the latter are not being used, the device according to the invention then having the general appearance of a wristwatch.

Abstract: To prevent circuit elements of a semiconductor circuit from being erroneously operated, a simulation of operations of the circuit elements is performed when the designed semiconductor circuit is designed. In this simulation, an event (or a change of a signal value) is initially given to each of a plurality of external input pins of the designed semiconductor circuit, and the event of each external input pin is serially propagated circuit elements serially connected with each other with the passage of time. Therefore, an event occurs at a time in each circuit element. A clock skew between events of each pair of circuit elements is analyzed according to connection information and delay information of the circuit elements, and external input pin information of each external input pin is attached to the events occurring in the circuit elements in which the event of the external input pin is propagated.

Abstract: A curfew timer apparatus for selectively disconnecting a signal line from an appliance. The apparatus includes a base and a timer coupled to the base. The timer is preferably a seven day timer configured to disconnect the signal line from the appliance during said preselected time periods and prevent usage of the appliance. The apparatus also lockable cover coupled to the base to protect and reduce the likelihood of tampering with the switch, the timer, the coupling means, and the connecting means. The base includes a flange surrounding an outer periphery of the base. The flange is configured to extend below a bottom surface of the base to abut a wall surrounding the wall outlet to reduce further the tampering risk. The apparatus further includes a three way switch for selectively continuously disconnecting the signal line from the appliance, continuously connecting the signal line to the appliance, or connecting the signal line to the appliance through the timer.

Abstract: A portable telephone assembly comprising first and second portions arranged to be mutually detachably interconnectable is disclosed. The second portion is arranged to be removably attachable to a user. The first portion comprises a body portion and an extendible portion movable between a relatively extended configuration and a relatively contracted configuration. The extendible portion is biased towards the relatively extended configuration, such that when the first portion is detached from the second portion, the extendible portion is urged towards the relatively extended configuration.

Abstract: A wristwatch includes an electronic device to form a multifunctional wrist worn device. The watch portion of the wristwatch can be shifted into a position that exposes the electronic device (e.g., telephone) so that the user can operate the electronic device. The keys are located on the periphery of the watch body. A display can be mounted on the back side of the watch portion so that when the watch portion is in the second position, the display is visible to the user.

Abstract: A method for transmitting an alarm over a cordless broadcast system having a base station in communication with a mobile unit and a computer. The computer includes a speech recognition system. The method includes requesting an alarm setting for a specified time with a voice command at the mobile unit and storing the requested alarm setting in the computer. The alarm is broadcast at the specified time to the mobile unit.

Abstract: A watch radiotelephone (10) comprises a watch face (12) and a keypad (14). The watch face (12) indicates a time of day in an analog format. The analog format includes twelve indicia (32-43) positioned around a perimeter (30) of the watch face (12). The twelve indicia (32-43) represent and correspond to twelve hours in a day in the analog format. The keypad (14) includes twelve keys (46-57). Individual keys (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57) of the twelve keys (46-57) are positioned to correspond with individual (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43) of the twelve indicia (32-43). A user of the watch radiotelephone (10) is permitted to actuate a predetermined number of the twelve keys (46-58) of the keypad (14) in a predetermined sequence to enter a telephone number in accordance with a user's familiarity of the twelve indicia (32-43) located around the perimeter (30) of the watch face (12). A timekeeping circuit (118) provides the time of day to the watch face (12).

Abstract: A video signal recording apparatus for recording a video signal on a recording medium comprises a memory for temporarily memorizing the video signal, a synchronizing separating circuit for separating a synchronizing signal from the video signal, a write control signal generating circuit for generating a write control signal used to write the video signal in the memory in response to the synchronizing signal from the synchronizing separating circuit, a recording circuit connected to the memory for recording the video signal read out from the memory on the recording medium, a timing signal generator for generating a timing signal relating to a driving state of the recording medium, and a read control signal generating circuit for generating a read control signal used to read the video signal memorized in the memory on the basis of the timing signal.

Abstract: The telephone watch (1) includes a back cover (2) in which is arranged a housing (3) arranged to accommodate a SIM card (4). A cover (5) provided with a hinge (6) closes the back cover (2). Means are implemented to assure the sealing (8) of the cover (5) and to assure the locking thereof (7). The hinge (6) is arranged so as to be entirely confined within the back cover (2).

Abstract: A wristwatch includes an electronic device to form a multifunctional wrist worn device. The watch portion of the wristwatch can be shifted into a position that exposes the electronic device (e.g., telephone) so that the user can operate the electronic device. The keys are located on the periphery of the watch body. A display can be mounted on the back side of the watch portion so that when the watch portion is in the second position, the display is visible to the user.

Abstract: The wristwatch (1) provided with a telephone device (3) able to receive and transmit messages broadcast by an antenna (4). The antenna (4) is integrated in a tongue (5) one (7) of the ends of which is attached to the wristband. The tongue can be arranged in a first position in which it runs alongside the wristband at least partly and is merged with it or a second position in which it is moved away from the wristband and stands upright in a plane containing the circle defined by the wristband when it is worn.

Abstract: A magnetic recording medium having a recording layer made up of a ferrimagnetic material whose compensation temperature is included within room temperatures and an information recording-reproduction method using the magnetic recording medium. During recording, while a light beam is projected on the recording layer so as to raise the temperature of a recording portion, information is recorded by applying a signal magnetic field from a magnetic head. During reproduction, while a light beam is projected on a reproducing portion of the recording layer so as to raise the temperature thereof, information is reproduced by detecting leakage flux from the reproducing portion by the magnetic head. Thus, during reproduction, no magnetic flux is generated from other portions of the recording layer not irradiated by the light beam. With the arrangement, crosstalk due to leakage flux from adjoining tracks not irradiated by the optical beam can be eliminated.

Abstract: The present invention is directed to apparatus and methods for reducing sidetone feedback in a portable wireless telephone system by positioning the speaker and the microphone to reduce acoustic feedback and by controlling the amplifier gain in the transmitter section of the wireless telephone to reduce amplification of sidetone which has been acoustically coupled from the speaker to the microphone. The wireless telephone may be configured as a watch with a wrist strap for retaining it to the user, as a piece of jewelry such as a brooch or pendant, as a voice capable pager/intercom, or as an identification badge for an employee. In one embodiment, the base station includes circuitry for further reducing sidetone feedback. In additional embodiments, the wireless telephone may include a quick-release outboard battery, a retractable earpiece, and an ergonomic keypad.

Abstract: Known is a wrist-watch telephone with an LCD display, and further a portable wireless data collection terminal. Such devices do not take into account all human factors that are to be considered for getting a true multimedia miniature and portable wireless two-way telephone. A wrist-watch wireless telephone is proposed having an interactive display screen as a graphical interface, preferably pen-activated. For still more multimedia like operation, screen functions of the wrist-watch wireless telephone are controlled by further actuators such as a watch button.

Abstract: A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a light spot onto the medium. When reproducing information, the light spot is projected onto the medium from the side of the magnetic layer. In this method only a high temperature region of the second magnetic layer within a light spot projection portion is changed to a perpendicular magnetization film so that information recorded in the first magnetic layer is transferred to the perpendicular magnetization film of the second magnetic layer. In addition, information which is transferred to the second magnetic layer is detected by using reflected light from the medium which is subjected to the magneto-optic effect from the perpendicular magnetization film of the second magnetic layer.

Abstract: A wrist-carried radiotelephone (10) comprises a housing (12), radiotelephone circuitry (90) and a bracelet (16). The radiotelephone circuitry (90) is disposed in the housing (12). The bracelet (16) is connected to the housing (12) and secures the housing (12) to a user's wrist. The bracelet (16) further comprises a plurality of links (18, 20, 22, 24). Each link (18, 20, 22, 24) of the plurality of links (18, 20, 22, 24) has a battery (26, 28, 30, 32) disposed therein. Adjacent links (18, 20, 22, 24) of the plurality of links (18, 20, 22, 24) are mechanically coupled together using a hinge (72, 74). Adjacent batteries (26, 28, 30, 32), disposed in respective adjacent links (18, 20, 22, 24) of the plurality of links (18, 20, 22, 24), are electrically coupled together using electrical conductors (50, 52, 58, 60). The batteries (26, 28, 30, 32) disposed in the links (18, 20, 22, 24) provide power to the radiotelephone circuitry (90).

Abstract: The present invention is directed to apparatus and methods for reducing sidetone feedback in a portable wireless telephone system by positioning the speaker and the microphone to reduce acoustic feedback and by controlling the amplifier gain in the transmitter section of the wireless telephone to reduce amplification of sidetone which has been acoustically coupled from the speaker to the microphone. The wireless telephone may be configured as a watch with a wrist strap for retaining it to the user, as a piece of jewelry such as a brooch or pendant, as a voice capable pager/intercom, or as an identification badge for an employee. In one embodiment, the base station includes circuitry for further reducing sidetone feedback. In additional embodiments, the wireless telephone may include a quick-release outboard battery, a retractable earpiece, and an ergonomic keypad.

Abstract: A method and system for preventing calls in a telecommunications network from being connected during specified periods of time, such as when calls to the desired communication terminal have been forwarded to a new communication terminal in a new time zone and the subscriber at the calling communication terminal is unaware of the local time of the new communication terminal. According to the invention, a prevention device is provided which informs the calling communication terminal of the local time of the new communication terminal prior to connection and requests the calling communication terminal to confirm whether the communication connection should be made, or automatically prevents the connection from being made and informs the calling communication terminal that the connection will not be made. The telecommunications network can include mobile telecommunications devices.

Abstract: A timing system which permits the operator of the timing system to indicate to others who wish to interact with the operator whether the operator is currently available. If the operator of the device is unavailable, the ting system indicates at what time the operator will be available. A first device on the operator's desk is used for setting the period of time that the operator will be unavailable. A second device is connected to the first device by a communications link and is situated in a location visible to the potential visitors who wish to visit the operator. The second device indicates to visitors whether or not the operator is available and facilitates efficiency in an office environment by not requiring them to travel all the way to the operator's work space. If the operator is unavailable, the second device can also display the time when the operator will be available.

Abstract: A method and apparatus for providing an alarm call using a DISA line in a private exchange includes: storing a password for limiting the use of the DISA line; externally connecting the DISA line to thereby receive an alarm call request; receiving an alarm call request and password from a user when the user is connected to the DISA line; storing time and telephone number to which the alarm call is to be sent, if the password input by the user is identical to the stored password; periodically comparing the stored time with a current time; and dialing the stored telephone number to provide an alarm call when the current time is identical to the stored time.

Abstract: In a magneto-optical disk for recording, reproduction or erasing with a laser beam, which comprises a film of four-layer structure consisting of a first dielectric layer, a magneto-optical recording layer, a second dielectric layer and a metallic layer, laid on a disk substrate provided with guide tracks, temperature distribution of the magneto-optical recording layer is controlled by controlling the thermal diffusivity of the metallic layer, and recording/reproduction/erasing repetition characteristics are improved thereby. In the disk of the present structure, the temperature is elevated in a broader area from the center of laser beam, and thus a thoroughly broad erasing domain width taking a track offset into account can be obtained and no recording domains remain after the erasing.

Abstract: A magnetooptical recording medium includes a substrate formed with a guide groove for tracking a laser beam, and first and second magnetic layers which are stacked on the substrate and each of which consists of an amorphous heavy rare earth-transition metal alloy. The first and second magnetic layers are magnetically coupled to each other. The first magnetic layer has a relatively high Curie temperature and a relatively low coercivity at room temperature, and the second magnetic layer has a relatively low Curie temperature and a relatively high coercivity at room temperature. The film thickness t.sub.1 of the first magnetic layer and the film thickness t.sub.2 of the second magnetic layer satisfy a condition t.sub.2 /t.sub.1 .gtoreq.2.5.