Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 8130939 | Maintaining convergence of a receiver during changing conditions In one embodiment, the present invention includes an apparatus having an automatic gain control (AGC) stage to receive an input signal from a communication channel physical medium, a first local gain stage coupled to an output of the AGC stage, an equalizer coupled ... | 03/06/2012 |
| 8031862 | Voice mail apparatus and control method thereof According to one embodiment, a voice mail apparatus is connectable to a telephone exchange, records a voice message sent from a caller telephone terminal in a mail box corresponding to each telephone terminals, and reproduces the voice message in response to a repro... | 10/04/2011 |
| 7409195 | Wireless modem A modem includes a base unit for transmitting a data signal, and a communication card which receives the data signal from the base unit over a wireless medium and which performs echo canceling on the data signal. The base unit is in communication with a telephone li... | 08/05/2008 |
| 7319956 | Method and apparatus to perform speech reference enrollment based on input speech characteristics A speech reference enrollment method involves requesting a user speak a word; detecting a first utterance; requesting the user speak the word; detecting a second utterance; determining a first similarity between the first utterance and the second utterance; when the... | 01/15/2008 |
| 7305346 | Audio processing method and audio processing apparatus A volume adjustment unit reduces the volume of audio data. By coding the audio data where the volume is reduced in advance, the possibility of being decoded in a manner of exceeding the maximum bit number at a reproduction-side apparatus is reduced. Thus, the volume... | 12/04/2007 |
| 7272224 | Echo cancellation A method, apparatus, system, and signal-bearing medium that in an embodiment determine a degree of correlation between a speaker output signal and a microphone input signal and modulate an adaptive gain of an acoustic echo canceller based on the degree of correlatio... | 09/18/2007 |
| 7233659 | Message playback concurrent with speakerphone operation A digital telephone answering device having speakerphone capability allows a recorded message to be played back and heard by the far-end party as well as over the local speakerphone by the near-end party during speakerphone operation as if it were a normal receive s... | 06/19/2007 |
| 7196698 | Display apparatus and assembly of its driving circuit A display apparatus and an assembly of a driving circuit for the display apparatus having a display device, a film carrier with a lead to transfer a signal for driving the display device, and a bus board to supply a signal to the lead. A dummy lead is provided along... | 03/27/2007 |
| 7190769 | Apparatus for controlling operation of a recording device with a telephone instrument An apparatus for controlling operation of a recording device with a telephone configured for orientation in a first state and a second state includes: (a) an information conveying section for conveying information from the telephone to a recording locus in the recor... | 03/13/2007 |
| 7177417 | Telephone handset with user-adjustable amplitude, default amplitude and automatic post-call amplitude reset The present invention is directed to a telecommunication device, usable with standard telecommunication equipment, that automatically resets one or more acoustic parameters to predetermined levels prior to the initiation of the next communication session. ... | 02/13/2007 |
| 7142665 | Automatic gain control for an adaptive finite impulse response and method therefore Methods and apparatus are provided for an echo cancellation system. The echo cancellation system comprises an automatic gain control (AGC), a first scalar, a second scalar, a signal summing stage, and an adaptive filter. The AGC is responsive to a first signal in a ... | 11/28/2006 |
| 7092514 | Audibility enhancement An apparatus for enhancing audibility of a far-end speech signal from a far-end user to a near-end user in a telephony system includes a near-end background noise signal level estimator (26) at the near-end user. A near-end speech signal level estimator (2... | 08/15/2006 |
| 7092513 | Limiting maximum gain in duplex communications devices including telephone sets Duplex communication methods and systems with maximum gain limiting such as in telephone handsets and speaker phones are disclosed. The communications system such as a telephone set may generally include a digital signal processor (DSP) having a receive and transmit... | 08/15/2006 |
| 7085371 | Push-button signal receiving device and a gain control method A push-button signal receiving device and a gain control method whereby error in validity determination of a received signal that accompanies the insertion of an AGC circuit can be prevented. An input bush-button signal is amplified by amplifying circuit and separat... | 08/01/2006 |
| 7079645 | Speaker volume control for voice communication device A system and method for adjusting the volume level of a communications device in response to ambient noise. In one embodiment, ambient noise is sampled once and the volume of a speaker associated with the communications device is increased to, and maintained at, a l... | 07/18/2006 |
| 7065165 | Automatic gain control methods and apparatus suitable for use in OFDM receivers Automatic gain control (AGC) methods and apparatus suitable for use in orthogonal frequency division multiplexing (OFDM) receivers are described. One AGC method includes the steps of repeatedly performing a first AGC process which adjusts amplifier gain based on det... | 06/20/2006 |
| 7006624 | Loudspeaker volume range control The present invention relates to a loudspeaker volume control arrangement for a telephone having a loudspeaker and a microphone which controls the loudspeaker volume of the telephone based on the estimated distance between the microphone and the loudspeaker. ... | 02/28/2006 |
| 6978010 | Ambient noise cancellation for voice communication device A system and method for reducing or entirely canceling background or ambient noise from a voice transmission from a communications device. A communications device, such as a mobile telephone, is configured with an ambient noise compensation signal generator that is ... | 12/20/2005 |
| 6959082 | Method and system for automatic gain control with adaptive table lookup A method and system for automatic gain control is provided. The automatic gain control may be used, for example, with a microphone and voice codec of a speakerphone telephone. In an exemplary embodiment, an amplification gain lookup table stores the gain values. The... | 10/25/2005 |
| 6925172 | Line interface with gain feedback coupled matching impedance A transceiver system is disclosed for use in a telecommunication system. The transceiver system includes a transmission circuit including a transmitter input coupled to an input of a transmission amplifier, a receiver circuit including a receiver output coupled to a... | 08/02/2005 |
| 6795547 | Full duplex speaker-phone providing increased loop stability A full duplex speaker-phone that performs adaptive filtering to provide increased loop stability between users of the speaker-phone. The invention employs a sliding filter that performs adaptive frequency dependent attenuation of the speech signals within a speaker-... | 09/21/2004 |
| 6768795 | Side-tone control within a telecommunication instrument A side-tone control unit for a telecommunication instrument is configured to include a side-tone amplifier having a transfer function selectively controlled in accordance with a set of amplifier parameters, and a side-tone controller, coupled to the side-tone amplif... | 07/27/2004 |
| 6760435 | Method and apparatus for network speech enhancement An apparatus for enhancing intelligibility of a voice signal in a noisy environment includes a first noise estimator which estimates a far-end noise component from the far-end signal, and a second noise estimator which estimates a near-end noise component from the n... | 07/06/2004 |
| 6744882 | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone The mobile telephone is provided with the capability for automatically adjusting the gain of a microphone of the telephone based upon the detected noise level in which the cellular telephone is operated. As the noise level increases, the gain of the microphone is au... | 06/01/2004 |
| 6711259 | Method and apparatus for noise suppression and side-tone generation An audio processing module, in accordance with the invention, includes an input for receiving input signals. A side tone generator is included for receiving the input signals and for generating a side tone to be output. A noise suppressor is coupled to the input for... | 03/23/2004 |
| 6711258 | Apparatus and method for controlling a volume in a digital telephone The present invention relates to an apparatus and a method for volume control in digital telephones such as second generation mobile telephone terminals, third generation IMT 2000 image mobile telephone terminals, and ISDN (integrated service digital network) termin... | 03/23/2004 |
| 6691073 | Adaptive state space signal separation, discrimination and recovery This invention unifies a set of statistical signal processing, neuromorphic systems, and microelectronic implementation techniques for blind separation and recovery of mixed signals. A set of architectures, frameworks, algorithms, and devices for separati... | 02/10/2004 |
| 6671371 | Adaptive transmit amplifier An adaptive transmit amplifier for automatically adjusting the transmit output characteristics of a headset adapter output stage includes a detector adapted to detect a value of a bias current in a host microphone transmit circuit. The adaptive transmit a... | 12/30/2003 |
| 6570985 | Echo canceler adaptive filter optimization The Least Mean Square (LMS) and Normalized LMS (NLMS) algorithms commonly employed in adaptive filters of echo cancelers are further optimized. Finite impulse response (FIR) filters are used to estimate a transfer function of an echo channel in a communic... | 05/27/2003 |
| 6519339 | Method of regulating power transfer across an isolation barrier An efficient method and circuitry for transferring various levels of power across a high voltage isolation barrier. In one embodiment of the invention, a data access arrangement (DAA) is provided with system side circuitry that provides power to line side... | 02/11/2003 |
| 6370245 | Full duplex communication circuits with bilateral T hybrid and balanced impedance configurations Full duplex circuits provide a bi-directional signal path at one port for transmit and receive signals and also provide separation between the transmit and receive signals at their respective ports. To accomplish this, the circuits employ amplifiers arran... | 04/09/2002 |
| 5940499 | Voice switch used in hands-free communications system A voice switch in a hands-free communications system performs selective attenuation with respect to respective voice signals being transmitted and received in respective transmitting and receiving paths, the transmitted voice signal having been converted ... | 08/17/1999 |
| 5867574 | Voice activity detection system and method An improved voice activity detection system and method is provided for use in speakerphones and other voice activated systems. To facilitate switching between various operating modes, the voice activity detection scheme utilizes a new voice energy term wh... | 02/02/1999 |
| 5857019 | Apparatus and method for providing a telephone user with control of the threshold volume at which the user's voice will take control of a half-duplex speakerphone conversation An improved speakerphone that may be viewed as a modification of a conventional half-duplex speakerphone that includes transmit and receive attenuators for alternatively isolating either a speaker or a microphone from a phone line. The attenuators are con... | 01/05/1999 |
| 5790679 | Communications terminal having a single transducer for handset and handsfree receive functionality A wireless terminal for personal communication systems is provided with selective handsfree or handset receive mode of operation utilizing a single transducer. The transducer is mounted within a specially designed enclosure having front and back chambers ... | 08/04/1998 |
| 5768398 | Signal amplification system with automatic equalizer A signal amplification system wherein a signal coming from a microphone is applied to a loudspeaker via a signal processing system. The signal processing system includes an estimator for estimating the transfer function from the loudspeaker to the microph... | 06/16/1998 |
| 5627501 | Signal coupler with automatic common line attenuation compensation The present invention relates to a for coupling Plain Old Telephone Service (POTS) signals and Asymmetric Digital Subscriber Line (ADSL) signals to a common line (TL). In order to avoid saturation of inductances (L1,L2,L3,L4) of a low pass POTS filter (LP... | 05/06/1997 |
| 5612996 | Loop gain processing system for speakerphone applications A loop gain processing scheme for a speakerphone arrangement determines system loop gain according to two echo feedback paths within the speakerphone system. Gain values for each half-loop are calculated separately to ensure that both the local and far en... | 03/18/1997 |
| 5604798 | Telephone system with automatic volume control 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 Ta... | 02/18/1997 |
| 5553134 | Background noise compensation in a telephone set An automated method for modifying a speech signal communicated over a telephone network by applying a gain factor in a telephone set before any side tone is added thereto. The gain factor is a function of a received signal indicative of the background noi... | 09/03/1996 |
