Switch Or Switch Actuator Structure Patents (Class 379/422)
  • Patent number: 10528874
    Abstract: A user expertise classifying method, system, and computer program product, include analyzing an input by a user based on at least one of vocabulary, orthography, and grammar of the user input, processing user background data obtained from a database, and calculating an expertise score of the user based on the analyzed user input and the processed background data.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: January 7, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ana Paula Appel, Victor Boa Juliani, Andre Gama Leal, Claudio Santos Pinhanez, Marcela Megumi Terakado
  • Patent number: 10506979
    Abstract: Analysis of keystroke dynamics performed by an individual can be used for assessment and monitoring of the individual's motor function. Keystroke events related to a user pressing one or more keys on a keyboard or regions on a touch screen may be analyzed to identify a plurality of distributions of keystroke event intervals. The plurality of distributions may be analyzed to identify one or more features indicative of variation among the distributions and indicative of the user's motor function. Monitoring of a user's motor function may include comparing a value for a feature for one plurality of distribution to a second value for the same feature for another plurality of distributions.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: December 17, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Luca Giancardo, Alvaro Sanchez Ferro, Ian Butterworth, Carlos Sanchez Mendoza
  • Patent number: 9872096
    Abstract: A boundary microphone is provided that does not generate spark discharge during an operation of a switch. The boundary microphone includes a microphone unit 6, and a switching unit (a button 4, a tube 9, a detector 10, a comparator, and a switching circuit) that switches turning-on or turning-off of output signals from the microphone unit 6, wherein the switching unit (the button 4, the tube 9, the detector 10, the comparator, and the switching circuit) includes an air chamber 9 and a controller that controls the turning-on or turning-off based on the air pressure inside the air chamber 9.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 16, 2018
    Assignee: Kabushiki Kaisha Audio-Technica
    Inventor: Hiroshi Akino
  • Patent number: 8964966
    Abstract: One exemplary problem addressed by the techniques disclosed herein is that the A-to-D converter of the broad-band audio codec that is being used more frequently in IP telephony, G.722, samples the analog audio source 16,000 times per second, rather than 8,000. Since all G.722-capable telephones must continue to be G.711-capable, one problem is that a microphone that provides appropriate bandpass filtering for G.722 encoding fails to provide adequate filtering for G.711. One exemplary aspect is therefore directed to telephones that must be able to switch back and forth between narrow-band digital audio encoding in which the A-to-D converter samples the audio stream 8,000 times per second, and a wide-band audio encoding in which the A-to-D converter samples the audio stream 16,000 times per second. This is accomplished using one or more of a plurality of switched microphones, a filter and a modification of the resonant frequencies of a handset.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 24, 2015
    Assignee: Avaya Inc.
    Inventor: Paul Roller Michaelis
  • Patent number: 8934623
    Abstract: A housing includes: main body 10 that includes a bottom portion and a side wall rising from the bottom portion; lid member 20 that is mounted on the inside of the side wall of main body 10; waterproof sealant 60 that is deposited between lid member 20 and main body 10 to seal a gap between lid member 20 and main body 10; and an operation section that is provided on lid member 20, wherein a peripheral edge of the operation section and a surface of lid member 20 are joined together with waterproof tape 70.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: January 13, 2015
    Assignee: NEC Casio Mobile Communications Ltd.
    Inventor: Takeshi Itou
  • Patent number: 8891755
    Abstract: The present disclosure discloses a telephone set and a method of controlling off-hook/on-hook state of a telephone set, and belongs to the field of communications devices. The telephone set includes a handle and a host, where the handle includes a first switch, and the host includes a second switch. According to the present disclosure, the first switch is added on the handle of the telephone set, the second switch is correspondingly added into the host of the telephone set, and a state of the first switch is used to control the second switch to send an off-hook/on-hook signal, so as to enable the telephone set to be off-hook/on-hook.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 18, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Qiaoqiao Cheng
  • Patent number: 8761383
    Abstract: A self configuring headset system comprising an interface unit, a method of setting up a headset system to a telephone device using and interface unit and a telephone interface unit is provided.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: June 24, 2014
    Assignee: GN Netcom A/S
    Inventors: Thomas Pedersen, Jesper Birk Jepsen
  • Patent number: 8649505
    Abstract: In a user-interactive system, such as an interactive voice response (IVR) system, the duration and/or force of key-presses by the user and/or the speed of response to prompts by the user are used to make inferences about the user, such as whether the user is impaired or is growing frustrated. The user interface is modified based on the inferences.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 11, 2014
    Assignee: Avaya Inc.
    Inventors: Paul Michaelis, David Mohler, Michael J. Thomas
  • Patent number: 8553875
    Abstract: A button box provides additional keys that can be used in conjunction with a telephone. In one embodiment, a button box is configured by associating it with a telephone and by programming its keys. When a key on the button box is activated, a key press event is sent from the button box to the associated phone. The phone treats the key press event as if a key on the phone itself had been activated and forwards the event to the voice switch appliance associated with the phone. (Alternatively, the key press event is sent from the button box directly to a voice switch appliance.) The button box's user interface is controlled by a voice switch appliance.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: October 8, 2013
    Assignee: ShoreTel, Inc.
    Inventors: Edwin J. Basart, Michael S. W. Tovino, Dale C. Tonogai, David B. Rucinski
  • Patent number: 8447030
    Abstract: A dual mode communication device comprises a first mode chip, a second mode chip, a switch, a first headphone jack, and a second headphone jack. The first headphone jack is electronically and selectively connected to the first mode chip or to the second mode chip through the switch. The second headphone jack is electronically connected to the second mode chip. The dual mode phone can simultaneously establish two voice communications with two other communication devices using the first mode chip and the second mode chip by respectively transmitting voice signals of the two voice communications through the first headphone jack and the second headphone jack.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: May 21, 2013
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., Chi Mei Communication Systems, Inc.
    Inventor: Tao-Liang Li
  • Patent number: 8433046
    Abstract: A line control apparatus having a first interface for connecting to a telephone line, a second interface for connecting to a facsimile apparatus, and a third interface for connecting to a telephone, includes: a first detecting unit that detects a calling signal transmitted from the telephone line and a second detecting unit configured to detect a signal from the telephone line, such signal having a voltage lower than a voltage that the first detecting unit can detect. In accordance with the second detecting unit having detected a signal from the telephone line, the control unit switches from a state wherein the first interface and the third interface are connected to a state of not being connected.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masahiro Kurahashi
  • Patent number: 8422665
    Abstract: A telephone device includes a base, a light transmitter, a light penetrating element for penetrating light transmitter from the light transmitter, and a handset. When an end of the handset is on-hook with the base, the end of the handset reflects the light emitted from the light transmitter and penetrating through the light penetrating element back to the light penetrating element. The telephone device further includes a light receiver for receiving the light reflected from the handset when the end of the handset is on-hook with the base, a light concentrating element for concentrating the light emitted from the light transmitter to the light penetrating element, and a control unit for determining whether the end of the handset is on-hook with the base according to whether the light receiver receives the light reflected from the handset.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 16, 2013
    Assignee: Wistron Corporation
    Inventors: I-Ming Chen, Kun-Liang Lai, Yi-Hung Chen
  • Publication number: 20130010948
    Abstract: A telecommunications module (1) comprises at least one pair of contact elements (13, 15) each extending between opposed sides (7, 8) of the module and having contacts (9, 10) at each end to which connections can be made. Each contact element comprises first and second parts (17, 19), the first part being resiliently-biased into engagement with the second part at a disconnection point (21), and a separating member (23) is located between the disconnection points of the pair of contact elements. The separating member (23) is shaped to deflect a probe (29), inserted into the module from one of the opposed sides, towards the disconnection point of a selected one of the pair of contact elements to break the engagement between the first and second parts of that contact element.
    Type: Application
    Filed: March 30, 2010
    Publication date: January 10, 2013
    Inventors: Xavier Fasce, Pierre Bonvallat, Hong Lu, Jingwen Zhong, Guy Metral
  • Publication number: 20120250853
    Abstract: A dual mode communication device comprises a first mode chip, a second mode chip, a switch, a first headphone jack, and a second headphone jack. The first headphone jack is electronically and selectively connected to the first mode chip or to the second mode chip through the switch. The second headphone jack is electronically connected to the second mode chip. The dual mode phone can simultaneously establish two voice communications with two other communication devices using the first mode chip and the second mode chip by respectively transmitting voice signals of the two voice communications through the first headphone jack and the second headphone jack.
    Type: Application
    Filed: August 5, 2011
    Publication date: October 4, 2012
    Applicants: CHI MEI COMMUNICATION SYSTEMS, INC., SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventor: TAO-LIANG LI
  • Patent number: 8233613
    Abstract: In a user-interactive system, such as an interactive voice response (IVR) system, the duration and/or force of key-presses by the user and/or the speed of response to prompts by the user are used to make inferences about the user, such as whether the user is impaired or is growing frustrated. The user interface is modified based on the inferences.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: July 31, 2012
    Assignee: Avaya Inc.
    Inventors: Paul Michaelis, David Mohler, Michael J. Thomas
  • Patent number: 7996050
    Abstract: An input device for an electronic device is provided that includes a base, a frame pivotally connected to the base, a roller member rotatably supported by the frame, and at least one button pivotally connected at a side of the base. An electronic device is also provided that includes a first body, a second body pivotally attached to the first body, and an input device located in the first body.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: August 9, 2011
    Assignee: LG Electronics Inc.
    Inventors: Chang-Bai Won, Jin-Hyung Cho, June-Wook Jeong
  • Patent number: 7991150
    Abstract: A button box provides additional keys that can be used in conjunction with a telephone. In one embodiment, a button box is configured by associating it with a telephone and by programming its keys. When a key on the button box is activated, a key press event is sent from the button box to the associated phone. The phone treats the key press event as if a key on the phone itself had been activated and forwards the event to the voice switch appliance associated with the phone. (Alternatively, the key press event is sent from the button box directly to a voice switch appliance.) The button box's user interface is controlled by a voice switch appliance.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: August 2, 2011
    Assignee: ShoreTel, Inc.
    Inventors: Edwin J. Basart, Michael S. W. Tovino, Dale C. Tonogai, David B. Rucinski
  • Patent number: 7831038
    Abstract: The present invention overcomes interface problems between proprietary handset ports on telephone base units and voice/data accessory products by allowing a user to automatically calibrate the telephone accessory product for an optimal interface match with the intended telephone base unit. This is accomplished through the use of a “Smart Interface Technology” (SIT) integrated chip set consisting of a full custom analog and semi-custom digital integrated circuit. The SIT incorporates three different methods for “learning” the characteristics of 4-wire port modular interfaces found in all telephone station sets. Basically, these methods determine the appropriate 4-wire terminal configurations, the transmit and receive channels of the intended telephone base unit, and adjust the channel sensitivities until an optimal and clear signal is provided for the user.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: November 9, 2010
    Assignee: Hello Direct, Inc.
    Inventor: Bruce W. Stelman
  • Patent number: 7616759
    Abstract: A switching device for providing selective telephone access to multi-telephone line and data line sources. The device can be incorporated within a compatible device or configured as a stand-alone, self-contained device. In the later configuration, it includes a housing, an input port for receiving multiple telephone or data lines and an output port for connecting a compatible device, such as a computer modem, to one of the telephone lines. Switching means are provided for selectively connected the compatible device to one of the multi-telephone or data line sources and for selectively blocking access to the multi-telephone or data line sources. Indicator means are further provided for identifying which of the multi-telephone or data line sources are being connected to the compatible device and whether access is being blocked to the multi-telephone or data line sources.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 10, 2009
    Inventors: Robert J. Kucera, Beverly Ann Kucera
  • Publication number: 20090185675
    Abstract: The embodiments of the present invention disclose a method and a device for invoking earpiece application program. The method includes: detecting whether an earpiece is connected or not; and displaying a prompt list of all applications supporting the earpiece in terminal equipment when detecting that the earpiece is connected. The embodiments of the present invention further disclose terminal equipment.
    Type: Application
    Filed: January 20, 2009
    Publication date: July 23, 2009
    Applicant: Shenzhen Huawei Communication Technologies Co., Ltd.
    Inventor: Qi Cheng
  • Patent number: 7536004
    Abstract: Standard telephone handset ports provide a bias voltage for any attached peripheral devices. The present invention provides bi-directional control signaling where telephone sets vary the bias voltage for detection by peripheral devices and where the peripheral devices provide short, load, and no-load conditions for detection by the telephone sets using the bias voltage.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: May 19, 2009
    Assignee: Mitel Networks Corporation
    Inventor: Philippe Moquin
  • Patent number: 7483722
    Abstract: A mobile communication device includes a housing, a processing module installed inside the housing for controlling the mobile communication device, a power supply module for supplying the electric power of the mobile communication device, a first connecting port installed on the housing and connected to the power supply module for outputting voltage transmitted from the power supply module, and a diathermic module connected to the first connect port including an electrode pad for providing an electrical treatment according to the voltage transmitted from the first connect port.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: January 27, 2009
    Assignee: Qisda Corporation
    Inventor: Chien-Hung Tsai
  • Patent number: 7469051
    Abstract: An intelligent automatic volume control technique (100) for a communication device is provided that takes a measurement of the background audio environment at the time a user manually selects the volume (102, 104). A user preference is established for the volume setting relative to the background audio level being experienced (106). The informational relationship is stored and used for automatic volume control (108). When the background noise changes (110), the automatic volume control makes an intelligent decision on changing the volume (116). The current background noise level, the initial user volume setting and the background noise level when that volume was set are all used in the volume change decision making process.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: December 23, 2008
    Assignee: Motorola, Inc.
    Inventors: Darren T. Sapashe, Chanhlong C. Lam
  • Publication number: 20080187130
    Abstract: The present invention relates to a switch matrix for making cross-connects for telephone lines. The switch matrix is comprised of a plurality of switch components (1) that include a plurality of input lines (A, B . . . ), a plurality of output lines (a, b . . . ), in which all of the output lines are commonly connected to the switch components, and drive means (3) and contact blocks (2) for selectively cross-connecting any one of the first switch component (1) input lines (A, B . . . ) to any one of the output lines (a, b . . . ). According to an embodiment, the invention comprises a switch component (4) that is arranged perpendicularly with respect to the first switch components (1), and a further switch component (6) is arranged in parallel with the first switch components and are connected the output lines (a, b . . . ). Furthermore, the input lines (A, B . . .
    Type: Application
    Filed: May 18, 2004
    Publication date: August 7, 2008
    Inventors: Sture Roos, Johan Oberg
  • Patent number: 7162026
    Abstract: The invention generally relates to a method for muting an alerting portable device such as a ringing cell phone or alarming PDA. Specifically where muting is activated in a means not requiring direct contact with the keys of the device. The indirect contact such as a hand pat or smack is detected within the device by a sensor such as a microphone or accelerometer. Control circuitry detects active indirect contact and then mutes the alert, and or does some other programmable operation.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: January 9, 2007
    Inventor: William J Furnas
  • Patent number: 7142666
    Abstract: The present invention is directed at a telephone that automatically selectively disables a microphone when the microphone is moved out of close proximity to the user's mouth. One embodiment comprises a sensor that detect if the telephone microphone is in close proximity to a user's mouth and a switch that selectively mutes the telephone in response to the detection.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: November 28, 2006
    Assignee: International Business Machines Corporation
    Inventors: Cary Lee Bates, John Matthew Santosuosso
  • Publication number: 20040234072
    Abstract: In a metal dome sheet to be hermetically adhered to a plurality of metal domes disposed at electrodes on a substrate and to other portions of the substrate via an adhesive layer, the present invention provides an adhesive layer removed portion at a portion of the adhesive layer between at least two adjacent metal domes as an air escape portion. Accordingly, it is possible to obtain a thin and light switch panel, which is also excellent in water resistance and dust resistance.
    Type: Application
    Filed: December 5, 2003
    Publication date: November 25, 2004
    Inventors: Koji Hirai, Takashi Matsukawa, Kenji Ninomiya, Masatomo Koshihara
  • Patent number: 6690793
    Abstract: A circuit for eliminating switching noise from a mute switch connected between a microphone capable of receiving and transmitting audio signals to a communication system, comprising, a switch state detector connected to the mute switch for generating an on signal in the event that the mute switch is open and generating an off signal in the event that the mute switch is closed, a codec circuit connected to the mute switch in parallel with the switch state detector for delaying the audio signals received by the microphone, and a CPU connected to the codec circuit for receiving the on signal and in response muting the audio signals and for receiving the off signal and in response transmitting the audio signals to the communication system.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: February 10, 2004
    Assignee: Mitel Corporation
    Inventor: Lawrence King
  • Patent number: 6600904
    Abstract: The present invention relates to an improved structure of a bracket component for the press button of a mobile phone, more particularly to another improved design implemented in the interior of a printed circuit board having control button on it for a bracket component by using thin membrane touch switch within a mobile phone. The bracket component according to the present invention is a curved metallic guiding bracket wherein the corresponding surrounding.has an inward cut curve, and such cut curve design has a four supporting legs deposed around the aligned design on the printed circuit board allowing a better positioning function. Furthermore, the present invention with the cut curve design has a characteristic to resume the press keys more effectively, and in turn elongate the life of the bracket.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: July 29, 2003
    Inventor: Hong-Chun Wang
  • Patent number: 6542436
    Abstract: A method and a device for detecting if an object is in proximity to the device, wherein sound (audio) transducers already found in the device are used to realize the proximity detection function, along with digital signal processing or equivalent means. The audio transducers are preferably those designed for use with human hearing and speaking capabilities in the range of about 20 Hz to about 20 kHz, and need not be specially designed transducers. The method includes steps of generating a measurement signal; driving an output acoustic transducer of the device with the measurement signal; monitoring an input acoustic transducer of the device to detect the measurement signal; and determining that an object is in proximity to the device based on a detected alteration of the measurement signal. The device may comprise a mobile telephone, such as a cellular telephone, or a personal communicator.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Nokia Corporation
    Inventor: Ville Myllyla
  • Publication number: 20020172354
    Abstract: A keypad with a key top (6) according to the present invention is a keypad with a key top (6) manufactured by bonding a keypad (1) made of a thermoplastic elastomer to a key top (5) made of a thermoplastic resin and being molded as a separate member from the keypad (1) with an adhesive (3) made from a reaction curing resin that swells when contacted with an organic solvent. A keypad with a key top (6) can be easily separated into a separate keypad (1) and a separate key top (5) by making this adhesive that bonds the keypad with the key top (6) swell when contacted with an organic solvent. Therefore, this keypad with the key top (6) is excellent in recyclability.
    Type: Application
    Filed: March 15, 2002
    Publication date: November 21, 2002
    Inventor: Kengo Nishi
  • Patent number: 6423171
    Abstract: A keypad for a portable telephone and manufacturing method thereof is disclosed. The method comprises the steps of printing characters on a transparent, planar film; pre-forming the planar film through a pressing process such that the planar film has a predetermined shape including a plurality of depressions; punching slits in the pressed planar film around the depressions; filling liquid silicone rubber into the depressions of the pressed planar film; forming a keypad by pressing the silicon rubber in a metal mold so as to fabricate an integrated keypad in which keys are interconnected; and trimming an outer periphery of the formed keypad according to a predetermined keypad shape.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 23, 2002
    Assignee: You Eal Electronics Co., Ltd.
    Inventor: Yoon-Hong Yang
  • Patent number: 6363146
    Abstract: A reset device is disclosed which may be used in electrical devices such as portable telephones. The reset device includes a source, such as a rechargeable battery, which provides an input voltage and a threshold voltage. The reset device also has a comparator with a first input which receives the input voltage and a second input which receives the threshold voltage. A voltage changing device varies the threshold voltage in response to the output level of the comparator and a rate of increase of the input voltage. The voltage changing device includes a capacitor which delays an increase of the threshold voltage when the input voltage increases. Further, the voltage changing device includes a positive feedback resistor for increasing the threshold voltage when the output level increases. Thus, the positive feedback resistor allows switching the threshold voltage from a first threshold level to a second threshold level when the output level switches from a low level to a high level.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: March 26, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Eugene Aranovich, Edwin A. Muth
  • Publication number: 20010014152
    Abstract: A keypad for a portable telephone and manufacturing method thereof is disclosed. The method comprises the steps of printing characters on a transparent, planar film; pre-forming the planar film through a pressing process such that the planar film has a predetermined shape including a plurality of depressions; punching slits in the pressed planar film around the depressions; filling liquid silicone rubber into the depressions of the pressed planar film; forming a keypad by pressing the silicon rubber in a metal mold so as to fabricate an integrated keypad in which keys are interconnected; and trimming an outer periphery of the formed keypad according to a predetermined keypad shape.
    Type: Application
    Filed: April 23, 2001
    Publication date: August 16, 2001
    Applicant: You Eal Electronics Co., Ltd Korea corporation
    Inventor: Yoon-Hong Yang
  • Patent number: 6148183
    Abstract: An electronic device (100) includes a housing (104), a substrate (257) seated in the housing (104), and a switch assembly (122) positioned in the housing (104). The switch assembly (122) has a body (200), contact pads (204), and contact arms (202). The contact pads (204) are carried on the substrate (257) and the contact arms (202) are carried on the body (200). The contact arms (202) abut the contact pads (204) and are deflected thereby. Such abutment electrically connects the switch assembly (122) to the substrate (257) without soldering.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: November 14, 2000
    Assignee: Motorola, Inc.
    Inventors: Philip S. Higdon, James Barber
  • Patent number: 6111939
    Abstract: The present invention discloses a method and apparatus to process a Caller-ID signal and store the caller-ID message in a buffer while the computer system is in a sleep state. The telephone controller detects the telephone ring and switches the signal path to receive the Caller-ID signal. A Caller-ID decoder converts the received Caller-ID signal into a Caller-ID code to be stored in a Caller-ID buffer. The processor sends a signal to activate the computer system. Upon activation, the computer system retrieves the Caller-ID code from the Caller-ID buffer. Therefore, the Caller-ID code is not lost during the powered-down or sleep period.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: August 29, 2000
    Assignee: Intel Corporation
    Inventor: Charles L. Brabanec
  • Patent number: 6009166
    Abstract: A hookswitch actuator including an activating mechanism which maintains the hookswitch circuit of a telephone in an "on hook" state when the activating mechanism is in a first position, or in an "off hook" state when the activating mechanism is in the second position. The movement of the activating mechanism between the two positions is accomplished through the use of a shape memory alloy mechanism. The shape memory alloy mechanism is coupled to the activating mechanism in such a way that heating or cooling of the shape memory alloy mechanism moves the activating mechanism between its two positions. Control of the heating and cooling of the shape memory alloy mechanism is effectuated by controlling the amount of electric current passing through it.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: December 28, 1999
    Assignee: Plantronics, Inc.
    Inventors: Fred I. Polito, Robert V. Davies, Gerald W. Skulley, Michael D. Perry, Kevin A. Sawyer, Brett A. Herscher, Robert J. Bernardi
  • Patent number: 5889858
    Abstract: A standby feed circuit for a subscriber line comprising a constant current power feeding circuit for a subscriber line for supplying a voltage to a subscriber line at a voltage less than a standard central office power feeding circuit, a voltage source for providing the standard voltage, apparatus for applying the standard voltage when a station apparatus connected to the subscriber line is in an on-hook condition, and apparatus for applying said voltage less than the standard voltage in place of the standard voltage when the station apparatus is in an off-hook condition.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: March 30, 1999
    Assignee: Mitel Corporation
    Inventors: Edward P. Gancarcik, Chuk Wally Seto
  • Patent number: 5734710
    Abstract: The invention relates to a communication system comprising a first subscriber line for a first user terminal to which subscriber line a service feature functioning in a service switching point is assigned, which feature can be activated and/or deactivated from the first subscriber line by the first user terminal. A remote control of the first user terminal via a second user terminal of a second subscriber line is provided to activate and/or deactivate the service feature.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: March 31, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Peter Hirth, Hans-Dietmar Schulz
  • Patent number: 5724667
    Abstract: A portable telephone includes a main body of the telephone, a transducer (preferably an earphone) contained in the main body so that it can be removed therefrom, a cord connecting the transducer and the main body, and a switching mechanism. The portable telephone further comprises transmitting means and a transmission/reception circuit. In one embodiment of the present invention, the switching mechanism switches between an off-hook state and an on-hook state in conjunction with the removing and containing of the transducer from and into the main body of the telephone preferably through the delivery or taking up of the cord from and into the main body of the telephone. In a second embodiment, the portable telephone further includes a hinged lid which is rotatably supported to close an opening provided in the main body.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 3, 1998
    Assignee: Sony Corporation
    Inventor: Hiroshi Furuno
  • Patent number: 5692044
    Abstract: A telephone handset having a housing, a loudspeaker, and microphone arranged to be brought into operating proximity with a user. A rocker member (41) extends through a side surface (16) of the housing and is arranged to be resiliently pushable in a first direction (46) and resiliently pushable in a second direction (47). A first switch (26) and a second switch (27) are mounted to a circuit board (25) in the housing; each arranged to cooperate with the rocker member so that the first switch is activated when the rocker member is pushed in the first direction and the second switch is activated when the rocker member is pushed in the second direction. The rocker member itself pivots about a pivot (31) directly mounted to the circuit board. Connection of the rocker member on the pivot directly on the circuit board facilitates fabrication of the circuit board into the housing without the constraint of ensuring, at this stage, that the rocker member co-operates with the switches mounted to the circuit board.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: November 25, 1997
    Assignee: Nokia Mobile Phones Limited
    Inventors: John Nevil Hughes, Robert Clifford Newstead
  • Patent number: 5604798
    Abstract: A You Talk Two Phone is provided that is a true two handset telephone device. With conventional telephones, when more than one telephone is bridged to a phone line the amplitude of the incoming and outgoing signals drop as telephones are added. The You Talk Two Phone contains two handsets and circutry that automatically adjusts internal amplifier gain to compensate for the extra handset even when not in use. The invention has audible and visible indicators of incoming calls as well as lamps that indicate when either or both handsets are in use. A jack is provided that allows a conventional phone to plugged in, or an additional You Talk Two Phone.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: February 18, 1997
    Inventors: John S. Sacchetti, Mark J. Sacchetti
  • Patent number: 5602914
    Abstract: Device for limiting the working voltage for mechanical switches in telephony includes terminals for connection to a telephone line, a connection and power supply branch for a control circuit extending from a first terminal, the branch having a first switch, the cathode terminal of a first Zener diode and the source terminal of a first MOSFET transistor being connected to the output terminal of the first switch, the gate terminal of the first MOSFET transistor being connected, through the anode terminal of the Zener diode, to the first terminal. The current absorbed by the device may be adjusted.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: February 11, 1997
    Assignee: SGS-Thomson Microelectronics S.r.l.
    Inventors: Antonio Andreini, Pietro Consiglio, Pietro Erratico, Enrico M. A. Ravanelli
  • Patent number: 5455468
    Abstract: This invention enables the number of required ports on a CPU to be reduced, in a switching circuit detecting any exchanged contact point out of plural points having more than three points. In a switching circuit enabling one line to connect to any one of plural lines having more than 3 lines, one line is connected to an input port of the CPU, and one of the plural lines to be switched is connected to a referencing voltage source, and another line of said plural lines to be switched is grounded, and the remaining lines of the plural lines to be switched are connected to output ports of the CPU, and furthermore, the output ports are designed to generate referencing voltages having specified generating timings differing from the timing of data sampling signals transferred to the input port.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: October 3, 1995
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yoshinori Hamazawa
  • Patent number: 5448636
    Abstract: Device for limiting the working voltage for mechanical switches in telephony includes terminals for connection to a telephone line, a connection and power supply branch for a control circuit extending from a first terminal, the branch having a first switch, the cathode terminal of a first Zener diode and the source terminal of a first MOSFET transistor being connected to the output terminal of the first switch, the gate terminal of the first MOSFET transistor being connected, through the anode terminal of the Zener diode, to the first terminal. The current absorbed by the device may be adjusted.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: September 5, 1995
    Assignee: SGS-Thomson Microelectronics S.R.L.
    Inventors: Antonio Andreini, Pietro Consiglio, Pietro Erratico, Enrico M. A. Ravanelli
  • Patent number: 5440628
    Abstract: A telephone apparatus comprises a base and a handset. An inclined cradle is provided on the base for receiving the handset and is shaped such that a handset placed thereon normally falls naturally into a fully seated position. A switch responsive to the presence or absence of the handset in the cradle places the apparatus in an "on-hook" or "off-hook" condition respectively. A co-operating arrangement respectively on the handset and the base permit the handset to be temporarily retained in a partially seated position on the cradle without activating the switch so as to permit the handset to be parked temporarily on the cradle without placing the apparatus in the "on-hook" condition.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: August 8, 1995
    Assignee: Mitel Corporation
    Inventor: Thomas A. Milc
  • Patent number: 5325428
    Abstract: The communication carried out by an auxiliary terminal machine (AUX) utilizes audio signal wires picked up out of an 8-circuit and 6-contact switch (SW) or an 8-circuit and 3-contact switch (SW). An automatic switching circuit (SS), connected to the audio signal wires containing alternating current and separated from the audio signal wires with direct current, serves to detect the termination of the auxiliary terminal machine and switch back to the normal phone. The energy-saving exchanger supplying only alternating current is allowed to be connected to the auxiliary terminal machine for performing a communication function and then automatically switches back to the normal phone connection when the auxiliary terminal machine terminates the communication.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: June 28, 1994
    Inventors: Seizo Iwai, Tsuneko Iwai, Yukiko Iwai, Yumiko Iwai
  • Patent number: 5235636
    Abstract: A portable telephone set housing having an illuminated switch portion. A flexible printed circuit board having a membrane switch and a liquid crystal display is mounted onto a support base of the telephone set housing. Onto the flexible printed circuit board is placed a key top sheet having a plurality of key tops. A switch panel having a plurality of holes for inserting therein of the key tops is mounted onto the key top sheet. The switch panel includes a transparent resin plate having an ink coating formed on the surface thereof except for a portion corresponding to the position of the display portion. In the membrane switch portion of the flexible printed circuit board, a plurality of light emitting diodes are provided which are adapted to introduce light into the interior of the switch panel.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: August 10, 1993
    Assignee: Fujitsu Limited
    Inventors: Hisamitsu Takagi, Masashi Tomura
  • Patent number: 5033083
    Abstract: A telephone line switch actuating mechanism includes two identical parts, each having a portion which makes up a plunger, while the remaining portion is pivotally mounted for enabling the two parts to be assembled in an opposing relationship to each other into a mechanism such that depression of either plunger activates the other plunger and the telephone line switch.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: July 16, 1991
    Assignee: AT&T Bell Laboratories
    Inventors: Casimer Gotfryd, James F. Oneby
  • Patent number: 4912759
    Abstract: A device for selectively keeping the flash button of a telephone handset depressed. The device comprises a detachable telephone handset engaging member, which when secured to the handset depresses the flash button, thereby keeping the telephone off line. When the handset engaging member is detached from the handset, the flash button is released and phone calls may be made. The device is easy to operate and makes it unnecessary to use the hook switch on the telephone cradle.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: March 27, 1990
    Inventor: Wallace Clark