Abstract: A system for sensing a position of a first member relative to a second member based on a radio frequency characteristic of a bias member is disclosed. The bias member may be configured to bias the second member relative to the first member. Radio frequency circuitry may be configured to apply a radio frequency signal to the bias member and provide one or more signals indicative of a position of the first member relative to the second member based on a radio frequency characteristic of the bias member.

Abstract: A liquid level sensor system can include a container configured to hold a volume of a liquid and a monopole antenna arranged proximate the volume of the liquid. A radiofrequency circuit may be configured to apply a radio frequency signal to the monopole antenna and provide one or more signals indicative of a level of the volume of the liquid within the container based on a radio frequency characteristic of the monopole antenna.

Abstract: A system for sensing a position of a first member relative to a second member based on a radio frequency characteristic of a bias member is disclosed. The bias member may be configured to bias the second member relative to the first member. Radio frequency circuitry may be configured to apply a radio frequency signal to the bias member and provide one or more signals indicative of a position of the first member relative to the second member based on a radio frequency characteristic of the bias member.

Abstract: A system for sensing a position of a first member relative to a second member based on a radio frequency characteristic of a bias member is disclosed. The bias member may be configured to bias the second member relative to the first member. Radio frequency circuitry may be configured to apply a radio frequency signal to the bias member and provide one or more signals indicative of a position of the first member relative to the second member based on a radio frequency characteristic of the bias member.

Abstract: A liquid level sensor system can include a container configured to hold a volume of a liquid and a monopole antenna arranged proximate the volume of the liquid. A radiofrequency circuit may be configured to apply a radio frequency signal to the monopole antenna and provide one or more signals indicative of a level of the volume of the liquid within the container based on a radio frequency characteristic of the monopole antenna.

Abstract: In an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter with transfer function W(z)=A(z/.gamma..sub.1)/A(z/.gamma..sub.2), the values of the spectral expansion coefficients .gamma..sub.1 and .gamma..sub.2 are adapted dynamically on the basis of spectral parameters obtained during short-term linear prediction analysis. The spectral parameters serving in this adaptation may in particular comprise parameters representative of the overall slope of the spectrum of the speech signal, and parameters representative of the resonant character of the short-term synthesis filter.

Abstract: A hitch for a horse-drawn vehicle, which includes a single shaft (2) passing over a horse's back and connected at its front end to a harness (5, 6, 7) via a traction cradle (4) on which the single shaft (2) is rotatably mounted, and at its rear end to a horse-drawn vehicle (3). The cradle (4) comprises two arcuate frame members (9, 10) interconnected at their bottom ends for connection with a collar (5) to the harness and diverging progressively from each other to reach a maximum separation vertically above the horse's withers. An element (11) integral with the single shaft (2) is rotatably mounted on a member (12) interconnecting the two frame members (9, 10) at their point of maximum separation. The cradle rests on the horse's back via two pads (15, 16) swivel-mounted on the rear frame member (10) and situated on either side of the midline of the horse's back. The single shaft (2) carried by the cradle (4) is connected to a wheeled vehicle (3) via a shock absorber suspension.