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| Patent # | Description |
|---|---|
| US-4,700,402 |
Input method for graphic pattern data Method of inputting digitalized, two value graphic pattern data of a character or a symbol into a memory device wherein, for the purpose of compressing the data... |
| US-4,700,401 |
Method and apparatus for character recognition employing a dead-band
correlator A character recognition system is disclosed utilizing a dead-band correlator for providing recognition of printed typestyles having horizontal and vertical... |
| US-4,700,400 |
Feature extraction technique for use in a pattern recognition system A method is provided for forming feature vectors representing the pixels contained in a pattern desired to be recognized, and reference patterns. One part of the... |
| US-4,700,399 |
Color image processing apparatus A color image processing apparatus comprises a detector for detecting an edge of an image and a control unit for controlling a black reproduction quantity for... |
| US-4,700,398 |
Method of and apparatus for detecting heights of points on surface of
object Several properties are assigned to the regions of an image having light and shade and obtained by photographing a surface of an object. Several properties are... |
| US-4,700,397 |
Surveillance microphone holder A microphone holder for surveillance work and adapted to support a microphone in a concealed position when the holder is taped to the upper torso of a... |
| US-4,700,396 |
Sound-wave receiving appliance A sound-wave receiving applicance comprises a resonance panel and a crystal type piezoelectric microphone responsive to oscillations generated by the soundwaves,... |
| US-4,700,395 |
Recreational cooler and speaker system A recreational cooler and speaker system includes an audio signal input terminal, such as an audio jack, on an outer wall of the cooler for driving speaker... |
| US-4,700,394 |
Method of recognizing speech pauses Method of recognizing pauses in a speech signal when a slowly varying noise signal is superposed on the speech signal. For the purpose of pause recognition... |
| US-4,700,393 |
Speech synthesizer with variable speed of speech In a speech synthesizer, speech speed is selectable by a switch which selects the number of repetitions of a basic waveform or equivalent parameters thereof. |
| US-4,700,392 |
Speech signal detector having adaptive threshold values Speech presence is detected by first comparing input signal absolute value versus a first threshold which is proportional to input signal RMS noise power,... |
| US-4,700,391 |
Method and apparatus for pitch controlled voice signal processing Digital processing of speech signals for compression/expansion pitch change is provided by writing and reading a ROM at different rates and controlling the... |
| US-4,700,390 |
Signal synthesizer To enhance low and high frequency components in a sound signal, low frequency components are used to generate new yet lower frequencies (subharmonics), and high... |
| US-4,700,389 |
Stereo sound field enlarging circuit In a stereo sound field enlarging circuit, signals A and B applied to left and right input terminals are suitably processed so that signals A' and B' represented... |
| US-4,700,388 |
Apparatus for scrambling a television signal An apparatus for scrambling or encoding a television signal by inverting the latter signal in accordance with a control signal having a predetermined code... |
| US-4,700,387 |
Broadcast system for scrambled programming signals A pay program signal is scrambled in an exclusive OR circuiit by a scrambling signal (Ks) derived from a random number generator. The pay program signal is... |
| US-4,700,386 |
Technique for promoting CATV pay-per-view events and acknowledging
subscriber orders In CATV systems employing one-way addressable converters in a subscriber's premise, a computer at the system head-end develops tagged messages for display on the... |
| US-4,700,385 |
Remote telephone control apparatus A control apparatus for remotely controlling the operation of a telephone hand set when a hand set is remotely located from its associated base. The apparatus... |
| US-4,700,384 |
Indoor telephone line demarcation box having several compartments A telephone line demarcation unit separates the telephone company's property and wiring from those of the user and provides security for the telephone line... |
| US-4,700,383 |
Lock-releasing mechanism for telephone set with muting function A lock-releasing apparatus for use in a telepone set, having a lock-releasing button (61) for a locking mechanism which locks a handset (41) stationarily to a... |
| US-4,700,382 |
Voice-switched telephone circuit with center idle state A voice-switched telephone circuit with center idle state improves bi-dirional gain control in loudspeaking telephones and thereby enhances the natural quality... |
| US-4,700,381 |
Circuit arrangement for centrally-controlled telecommunications exchange
systems, comprising central control... Two parallel-operated control units each communicate via a respective discrete bus with a respective assigned group of switch devices, and given an alternate... |
| US-4,700,380 |
Solid state remote actuable switch A solid state remotely actuable switch includes at least one solid state bilateral switch having a first and a second terminal connected in series with the... |
| US-4,700,379 |
Aircraft communications apparatus Aircraft communications apparatus includes a permanent communications system, a temporary communications system and an interface coupler connecting the permanent... |
| US-4,700,378 |
Data base accessing system Inexpensive communication is provided between a data base and a plurality of subscribers each equipped with only a telephone and a TV set by using only tone... |
| US-4,700,377 |
Selectively actuable electronic apparatus An electronic apparatus includes a plurality of selectively actuable selection devices for causing the apparatus to perform a plurality of distinct operations. A... |
| US-4,700,376 |
Automatic telephone answering apparatus with remote control signal muting An automatic telephone answering apparatus includes tape recorder sections for outputting a speech message through a telephone line, and for recording and... |
| US-4,700,375 |
Battery charging, reset, and data transfer system A vehicle mounted mobile transceiver (11) communicates via a secondary mobile unit (51) with a short range portable unit (10). The portable unit (10) can be... |
| US-4,700,374 |
Mobile telephone location system A mobile telephone location system is provided wherein a plurality of mobile telephone exchanges, each of which controls an area and is in a position to monitor... |
| US-4,700,373 |
Platforms for X-ray examination of knee joints Platforms are described for positioning a patient's knee for X-ray evaluation. The basic platform comprises upper and lower leg supports which are angled... |
| US-4,700,372 |
X-ray generating apparatus An X-ray generating apparatus is adapted to obtain an X-ray tube voltage by rectifying an incoming AC voltage to obtain a DC voltage, supplying the DC voltage,... |
| US-4,700,371 |
Long life x-ray source target Disclosed herein is an X-ray lithography system having a long life target. The life of the conventional target in X-ray generating systems for use in X-ray... |
| US-4,700,370 |
High speed, low power, multi-bit, single edge-triggered, wraparound,
binary counter A high speed, low power, multi-bit, single edge triggered, wraparound binary counter is provided which is resettable and loadable from a user-supplied address.... |
| US-4,700,369 |
Athletic activities counter This invention provides a highly portable device for counting athletic activities of a repetitive nature, e.g., pool laps swum, track laps run, pushups, situps,... |
| US-4,700,368 |
Method and apparatus for sensing sheets Apparatus for sensing the passage of sheets (1) through a nip formed by rollers (5 and 6), includes means for sensing the deflection of one roller relative to... |
| US-4,700,367 |
Pulse width control circuit A pulse width control circuit for providing a control signal to adjust variations of electrical characteristics among a plurality of printing elements has an... |
| US-4,700,366 |
Method for the reception and detection of digital signals A method for the reception and the detection of digital signals wherein at least two signals (s.sub.1, s.sub.2, . . . s.sub.M) having at least approximately the... |
| US-4,700,365 |
Digital threshold detector with hysteresis As the 8-bit input signal applied to a threshold device reaches a first threshold level, the 1-bit output signal changes from a logical zero to a logical one.... |
| US-4,700,364 |
FSK with continuous phase and continuous slope at bit transitions A FSK code with reduced high frequency content is generated. First through fourth waveforms are provided to a selector which selects one of the four waveforms in... |
| US-4,700,363 |
Data communication method and apparatus A data stream is impressed on a carrier by forming from the data stream a succession of binary symbol words which control the modulation level of the carrier... |
| US-4,700,362 |
A-D encoder and D-A decoder system An encoder converts an analog input signal to a digital signal. The encoder comprises a circuit for generating a control signal with a predetermined bandwidth... |
| US-4,700,361 |
Spectral emphasis and de-emphasis The complementary pre-processing and post-processing circuits of this inventiona re advantageous for reducing noise introduced into a signal by a process or... |
| US-4,700,360 |
Extrema coding digitizing signal processing method and apparatus A system for converting analog input waveforms into digital signals is disclosed. The system reduces the bit rate required for the transmission of signals over a... |
| US-4,700,359 |
Circuit arrangement for sampling a ternary signal In a circuit arrangement for sampling a ternary signal, this ternary signal is divided by amplitude decision circuits into two binary signals and the binary... |
| US-4,700,358 |
Synchronous/asynchronous modem An improved modem is described which can selectably operate in a synchronous communications mode, an asynchronous data mode, and an asynchronous command mode. A... |
| US-4,700,357 |
Synchronizing stage for the acquisition of a synchronizing signal having
low jitter from a biternary data sequence A synchronizing stage is provided in a regenerative repeater at the receiving side of a transmission circuit for acquiring a synchronizing signal from a... |
| US-4,700,356 |
Contact jaw for an electrode mount A copper contact jaw is insulated from and releasably fastened to an electrode mount (4) of an electric furnace to transfer current from input leads to an... |
| US-4,700,355 |
Electrical melting furnace exchangeable electrode assembly a method for
changing a contact electrode assembly A direct current arc or resistance melting furnace includes a contact electrode produced as an exchangeable assembly outside the furnace and introduced into an... |
| US-4,700,354 |
High-energy TE laser system A high-energy TE laser system, includes an excitation circuit having supply lines, a laser head having an optical axis, a laser chamber with a gas space formed... |
| US-4,700,353 |
Active modulation of quantum well lasers by energy shifts in gain
spectra with applied electric field Modulation of a semiconductor laser device is achieved at microwave frequencies by the application of transverse fields which produce energy shifts in the gain... |
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