Abstract: A head-mounted-display (HMD) includes a face plate, and a main body. The main body attaches the face plate to cover a front portion of the main body. The main body includes a front plate, a back plate, and a circuit board. The front plate includes at least one first air channel formed at a rear side of the front plate facing away from the face plate for conveying air from a bottom portion of the main body to an upper portion of the main body. Each of the front plates may be formed with windows for receiving an intake air or discharging an outflow air. The back plate is attached to the front plate and located further away from the face plate. The circuit board is located between the front plate and the back plate.

Abstract: A Head-Mounted-Display (HMD) has snap rings assembled onto the eyecup assembly. The HMD includes a front body with an outer case and an eyecup assembly. At least a portion of the eyecup assembly is enclosed in the outer case at a rear portion of the front body. The HMD includes a facial interface of a specific shape and dimension to interface with a user's face at the rear portion of the front body. The HMD includes at least one snap ring assembled onto the eyecup assembly with a front portion of the facial interface between the snap ring and the front body to secure the facial interface to the front body.

Abstract: A head-mounted-display (HMD) includes a face plate, and a main body. The main body attaches the face plate to cover a front portion of the main body. The main body includes a front plate, a back plate, and a circuit board. The front plate includes at least one first air channel formed at a rear side of the front plate facing away from the face plate for conveying air from a bottom portion of the main body to an upper portion of the main body. Each of the front plates may be formed with windows for receiving an intake air or discharging an outflow air. The back plate is attached to the front plate and located further away from the face plate. The circuit board is located between the front plate and the back plate.

Abstract: A head-mounted display for a virtual-reality system includes one or more outer surfaces having a plurality of recesses. Light-emitting diodes (LEDs) are installed in respective recesses of the plurality of recesses. The recesses are covered with covers that are substantially flush with respective surfaces of the one or more outer surfaces of the head-mounted display.

Abstract: Devices dispense air treatment chemicals in response to heat generated by a candle. There is a support mounted on the candle that carries a substrate bearing the air treatment chemical. The support holds a heating plate with substrate thereon over the candle, and a chimney in the heating plate (and passage through the substrate) allow heated air to pass through when the candle wax is being combusted. Heat dispersal fins are formed along the chimney. A washer shaped substrate is provided that is made of fiberglass bound with polyvinyl alcohol and bears the air treatment chemical.

Abstract: Devices dispense air treatment chemicals in response to heat generated by a candle. There is a support mounted on the candle that carries a substrate bearing the air treatment chemical. The support holds a heating plate with substrate thereon over the candle, and a chimney in the heating plate (and passage through the substrate) allow heated air to pass through when the candle wax is being combusted. Heat dispersal fins are formed along the chimney. A washer shaped substrate is provided that is made of fiberglass bound with polyvinyl alcohol and bears the air treatment chemical.

Abstract: A dispenser combines the efficiency of a post-mix dispenser, while providing the visual appeal of a visual spraying dispenser. A bowl holds a liquid that is circulated through a cooling system to provide a cool spray, and thus to create condensation on the outside of the bowl. The beverage that is dispensed is from remote supplies of concentrated syrup and water. The bowl has a single body that defines a number of compartments. The body is covered with a lid, and rests on a concentrate tray that drains away condensate that build up on the body. The body is easily removably and replaceably coupled to the tray. The valves for dispensing are on a movable support so that the height of the dispenser can be made smaller while still providing manual access to the valves.

Abstract: A cooling system for post-mix beverage dispenser includes an ice bath tank for holding a liquid, a refrigeration circuit for cooling the liquid in the ice bath tank, a concentrate storage area, and a cooling circuit coupled to the ice bath tank, for cooling the concentrate storage area. A pump in the cooling circuit transfers the liquid from the ice bath tank to a coil in the concentrate storage container. The circuit returns the liquid to the ice bath tank and creates the turbulence necessary for the liquid to freeze evenly in the tank. Thus, an agitator assembly is not necessary. A fan in the concentrate storage area circulates air over the coil. The pump can be selectively coupled to drain the tank.

Abstract: A circuit divides pulse code modulation (PCM) samples in D2 format. An exponent subtractor provides the difference of the exponents of the two numbers. A mantissa multiplier circuit determines the quotient by multiplying the mantissa of the PCM sample by an inverted divider. A sign generator provides a sign value for the resultant quotient of the two numbers. A normalizer circuit ensures that the quotient mantissa has a predetermined range of values.

Abstract: A circuit multiplies or divides pulse code modulation (PCM) samples in D2 format. An exponent adder/subtractor provides the sum/difference of the exponents of the two numbers. A mantissa multiplier/divider circuit determines the product/quotient of the two mantissas and a sign generator provides a sign value for the resultant product/quotient of the two numbers. A normalizer circuit ensures that the product/quotient mantissa has a predetermined range of values.

Abstract: A circuit multiplies pulse code modulation (PCM) samples in D2 format. An exponent adder provides the sum of the exponents of the two numbers. A mantissa multiplier circuit determines the product of the two mantissas and a sign generator provides a sign value for the resultant product of the two numbers. A normalizer circuit ensures that the product mantissa has a predetermined range of values.

Abstract: A circuit adds and subtracts pulse code modulation (PCM) samples in D2 format. An exponent subtractor determines the difference between exponents of the two PCM samples. A mantissa shifter circuit shifts the mantissa portion of a selected PCM sample to compensate for the difference in the exponents. A mantissa adder circuit adds or subtracts the mantissa portion of the shifted and unshifted PCM samples and a sign generator provides a sign value representative of the resultant added or subtracted PCM samples. A normalizer circuit ensures that the mantissa has a predetermined range of values.

Abstract: This invention relates to signal detecting and in particular to apparatus and a method for detecting one or more audio frequencies (tones) contained in a Pulse-Coded Modulation (PCM) signal.

Abstract: This invention relates to signal detecting and in particular to apparatus and a method for detecting one or more audio frequencies (tones) contained in a Pulse-Coded Modulation (PCM) signal.