Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Application No. | Application Title | Issue Date |
| 20110112988 | PORTABLE RADIO COMMUNICATION APPARATUS AND METHOD OF USE A portable communication apparatus and method includes a portable AM transmitter assembly and antenna operably connected for broadcasting an AM signal to standard automobile radio receiver, such as on a travel information station frequency of 1610 KHz. The system is par... | 05/12/2011 |
| 20070195961 | FM transmitter A stereo modulator converts an inputted audio signal to a stereo composite signal. A frequency modulator, which includes a PLL circuit, performs frequency modulation with the stereo composite signal outputted from the stereo modulator as being a modulation signal. A fir... | 08/23/2007 |
| 20060093151 | Battery operated speakerphone In various embodiments, to avoid having to plug in the speakerphone, the speakerphone may be powered with a battery. In some embodiments, the speakerphone may exchange a discharged battery with a charged battery on a charging stand. In some embodiments, a charging stand... | 05/04/2006 |
| 20060083384 | Amplitude and phase compensator for BTSC encoder A BTSC encoder includes a sum channel (L+R), a difference channel (L−R), and one or more of a phase compensator and an amplitude compensator. The sum channel (L+R) has a L audio input for receiving a digital L audio signal, a right (R) audio input for receiving a digi... | 04/20/2006 |
| 20060078128 | Receiver The invention refers to a method for a receiver (1) having a signal path (3) incorporating a tuner (4), a frequency demodulator circuit (5) for supplying an analog stereo multiplex signal comprising a baseband stereo sum signal, a 19 kHz ster... | 04/13/2006 |
| 20050232431 | Audio apparatus An audio apparatus is provided that permits selection of either analog or digital audio signals in execution of a scan operation. A radio receiver 300 comprises a tuner 320 capable of receiving carrier wave signals including at least an analog audio signal... | 10/20/2005 |
| 20050163321 | Circuit for processing audio signals An audio signal processing circuit for demodulating an audio multiplexed signal and outputting the demodulated signal extracts a second audio signal from the audio multiplexed signal, has plural amplifying units for amplifying the second audio signal with different gain... | 07/28/2005 |
| 20050153716 | Wireless, multi-user audio system A wireless audio system for a number of users. The system includes a base unit that is adapted to removably store, recharge and communicate with personal microphone modules. The system also includes a plurality of personal microphone modules that each are adapted to be ... | 07/14/2005 |
| 20050141721 | Coding of stereo signals Disclosed is a method of encoding a multichannel signal, such as a stereophonic audio signal, including at least a first signal component (L) and a second signal component (R). The method comprises the steps of transforming at least the first and second signal component... | 06/30/2005 |
| 20050105740 | Portable speakerphone with pivoting microphone boom A wireless speakerphone with a pivoting microphone boom is provided. The speakerphone communicates via a wireless network to a cellular telephone, cellular telephone adaptor, land-line telephone, land-line telephone adaptor, computer, personal digital assistant, or othe... | 05/19/2005 |
| 20050036626 | Method and system for processing a Japanese BTSC signal When processing a Japanese BTSC transmission, a main channel and a sub channel are processed separately. Because more components and steps are used to process the sub channel, processing the sub channel takes longer than the main channel. Therefore, a delay is inserted ... | 02/17/2005 |
| 20050031127 | Wireless audio system A system for wireless transmission between a device such as a game controller and a base transceiver linked with a host device. Multiple controllers can be linked with the base transceiver through radio frequency transmission, and audio signals can be selectively transm... | 02/10/2005 |
| 20050018857 | Wired, wireless, infrared, and powerline audio entertainment systems A method and system for communicating audio signals between an input device and an output device via a network. The output device can include loudspeakers and headphones. In some embodiments an output device, for example a center channel speaker, transmits audio signals... | 01/27/2005 |
