Abstract: A micro coaxial cable connector assembly (1) includes a connector (10), a plurality of wires (20, 22), an upper grounding shield (30) and a lower grounding shield (40). The connector includes a mating portion (101), a plurality of terminals (102) received in the mating portion and a base (103) perpendicular to the mating portion. The base defines a plurality of canals (110). The terminals each have a portion extending into a corresponding canal. The wires each have a conductor (203) also extending into a corresponding canal. A number of solder slugs (50) are positioned in the canals when the solder slugs are heated, they are melted to solder the conductors to the terminals.

Abstract: A micro coaxial cable connector assembly (1) includes a connector (10), a plurality of wires (20, 22), an upper grounding shield (30) and a lower grounding shield (40). The connector includes a mating portion (101), a plurality of terminals (102) received in the mating portion and a base (103) perpendicular to the mating portion. The base defines a plurality of canals (110). The terminals each have a portion extending into a corresponding canal. The wires each have a conductor (203) also extending into a corresponding canal. A number of solder slugs (50) are positioned in the canals when the solder slugs are heated, they are melted to solder the conductors to the terminals.

Abstract: A micro coaxial cable connector assembly (1) includes a connector (10), a plurality of wires (20, 22), an upper grounding shield (30) and a lower grounding shield (40). The connector includes a mating portion (101), a plurality of terminals (102) received in the mating portion and a base (103) perpendicular to the mating portion. The base defines a plurality of canals (110). The terminals and the conductors are soldered together in the canals. The upper grounding shield is assembled to the mating portion in a first direction. The lower grounding shield is assembled to the base in a second direction perpendicular to the first direction. The wires have grounding braiding (201) surrounding conductors (202) thereof. The grounding braiding is electrically connected to the upper and lower grounding shields through upper and lower grounding bars (60, 62) received in the base of the conductor.

Abstract: A micro coaxial cable connector assembly for contacting with a mating electrical connector includes a front and a rear housing members, a cable set with a number of cables, and a number of contacts. The front and rear housing members are efficiently and durably retained together by the cooperation between a pair of channels and corresponding latch portions thereof and by the interference fit of first retention sections and second retention sections of the contacts within a number of grooves and the passageways of the front and rear housing members, respectively. The cable set consists of juxtaposed cables each having at least a signal segment and a grounding segment, and a grounding bar formed by two plates soldered to the grounding segments of the cables. Each passageway of the rear housing member is equipped with an orientating device for convenience in soldering the signal segment of the cable to the tail section of the corresponding contact.

Abstract: The frame based modulus interleaver is used in a digital communications system. The interleaver uses an algorithm which insures that all of the data blocks which are present in the each input frame are output in a single output frame. This is accomplished, in accordance with the invention, by using a modulus operation to determine the location of each block which is input into the interleaver.

Abstract: A sketching system sketches first notes to be transmitted over a telephone line receives second notes from another sketching system. The sketching system includes a signal de-combiner device, receiving the second notes from the another sketching system and voice data as a combined signal via the telephone line and de-combining the combined signal into the second notes and the voice data. In addition, the sketching system includes a sketching unit connected to the signal de-combiner. The sketching unit includes a note displaying device displaying the first and second notes, a note generating device generating the first notes, and a processor connected to the note displaying and generating devices and to the signal de-combiner, receiving the first notes from the note generating device, receiving the second notes to the note displaying device.

Abstract: A first phase change is introduced to an analog signal based on a symbol specified by a data signal, where the symbol is one of a plurality of symbols in a symbol constellation. The analog signal is added to the data signal to form a combined signal which is transmitted over a communication channel that introduces a channel phase change to the analog and data signals. After transmission through the communication channel, the combined signal comprises a phase changed analog signal and a phase changed data signal. A received symbol is specified by the phase changed data signal, and a phase shift is introduced to the phase changed analog signal based on the identity of the received symbol.

Abstract: A sketching system sketches first notes to be transmitted over a telephone line and receives second notes from another sketching system. The sketching system includes a signal de-combiner device, receiving the second notes from the another sketching system and voice data as a combined signal via the telephone line and de-combining the combined signal into the second notes and the voice data. In addition, the sketching system includes a sketching unit connected to the signal de-combiner. The sketching unit includes a note displaying device displaying the first and second notes, a note generating device generating the first notes, and a processor connected to the note displaying and generating devices and to the signal de-combiner, receiving the first notes from the note generating device, receiving the second notes from the de-combiner, and transmitting the first and second notes to the note displaying device.

Abstract: An new cellular interface directly couples the speaker and microphone of a cellular telephone to a simultaneous voice and data (SVD) modem. This interface allows a cellular telephone user to use their cellular telephone for simultaneous voice and data communications over the cellular network. In addition, of the SVD modem has a port coupled to a switched facility of a switching system, this cellular interface allows the cellular telephone user to place a telephone call from their cellular telephone over the switched facility.

Abstract: A central office of a public switched telephone network has a modem pool that includes both simultaneous voice and data (SVD) capable modems and standard, e.g., CCITT V.32 compatible, modems. A user with an SVD modem, i.e., an SVD user, establishes an SVD link with the SVD modem of the central office. These SVD modems exchange SVD signals that include voice and data. The SVD modem of the central office separates the voice and data portions of the SVD signal for separate transmission to different parties. The voice portion of the SVD signal receives standard voice-call handling from the central office for transmission to the party that is a part of the voice call. The data portion of the SVD signal is routed through the standard modem of the central office for transmission to the party that is a part of the data call.

Abstract: In a simultaneous voice and data communications system comprising two modems, an autorate feature is implemented in one illustrative method by adding a silence detector to the receiver circuitry of at least one of the modems in such a way that noise statistics for the communications channel are only accumulated during intervals of silence. If the resulting noise statistics exceed a predetermined threshold, i.e., the communications channel is too noisy, the receiving modem negotiates a lower data rate with the transmitting modem. In another illustrative method, the transmitting modem provides a signal, which represents an interval of silence, to the receiving modem. Upon receipt of the signal, the receiving modem accumulates error statistics in order to determine if the communications channel is too noisy.

Abstract: A method and apparatus for concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them. The analog signal, generally limited in magnitude to less than the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Both half-duplex and full-duplex operation is available in accordance with the disclosure.

Abstract: A simultaneous voice and data (SVD) modem includes a preemphasis filter for processing an audio source signal, e.g., a voice signal, before transmission to a far-end SVD-capable modem. The preemphasis filter implements a second order linear predictor in which a quantized set of predictor coefficients are selected directly from the normalized autocorrelation coefficients. In addition, an index is associated with the selected set of predictor coefficients. This index is transmitted to an opposite SVD-capable modem, which thereby allows the opposite SVD-capable modem to select the same set of predictor coefficients for use in recovering the voice signal at the opposite endpoint.