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AssigneeAlps Electric Co., Ltd.
InventorsYuichi Umeda, Junichi Saito, Ichiro Morishita, Masaru Nakayama, Arao Sato, Kazuhiro Katagiri
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An apparatus is disclosed for inclination detection wherein infrared transmitted signal, signal groups S1, S2, S3, . . . including a leader code, a parity bit and bits for data transfer are sequentially transmitted with an interval time t3. At each bit of the signal group S1, "1" and "0" of a binary signal expressing the data are not inverted, at the signal group S2, "1"and "0" expressing the data are inverted, and inversion and non-inversion are repeated every signal group. At bits of each signal group, since a time length expresses "1" and "0", a total time length of each signal group is different from that of other signal group. By repeating sets of inverted and non-inverted signal groups, the time length of each set is averaged, and hence, data processing can be made more efficient.
A transmitting/receiving apparatus comprising a transmitting apparatus for transmitting phase-modulated signals per signal group with an interval, and a receiving apparatus having a waveform shaping block for performing waveform shaping of signals of each received said signal group, and a discriminator for discriminating "1" and "0" of a binary signal from the waveform-shaped signal, said transmitting/receiving apparatus, wherein a first signal group including data inverted "1" and "0" of the binary signal of data to be transferred and a second signal group including data not inverted are regularly repeated and transmitted from said transmitting apparatus and wherein each of a high level and a low level of said signals form a unit bit, and "1" or "0" of the binary signal is expressed by whether each bit is the unit bit or integer times of a unit time T representing a time length of each unit bit and wherein in each of said signal groups an inversion bit for showing whether a signal in said signal group is the signal inverted "1" and "0" of the binary signal of data to be transferred or not.
A transmitting/receiving apparatus comprising a transmitting apparatus for transmitting phase-modulated signals, and a receiving apparatus having a waveform shaping block for performing waveform shaping of said received signals, and a discriminator for discriminating "1" and "0" of a binary signal from a time length of a high level and a time length of a low level of a signal which is shaped in a rectangular wave, said transmitting/receiving apparatus, wherein at said discriminator, whether each of a time length of a high level and a time length of a low level of a waveform-shaped rectangular signal are a unit time T or integer times of the unit time T is measured, each bit of a high level and a low level is defined as a unit bit, and "1" or "0" of a binary signal is discriminated per bit and wherein in a group of signals, a parity bit is provided, this parity bit expresses whether a sort "1" of a binary signal of each bit of a high level in a rectangular wave signal is even or odd, or whether a sort "1" of a binary signal of each bit of a low level is even or odd.
A transmitting/receiving apparatus comprising a transmitting apparatus for transmitting phase-modulated signals, and a receiving apparatus having a waveform shaping block for performing waveform shaping of said received signals, and a discriminator for discriminating "1" and "0" of a binary signal from a time length of a high level and a time length of a low level of a signal which is shaped in a rectangular wave, said transmitting/receiving apparatus, wherein each of a high level and a low level of said signal forms a unit bit, "1" or "0" of the binary signal is expresses with whether each bit is the unit bit or integer times of a unit time T representing a time length of each unit bit, at said discriminator, a period of two unit bits such as succeeding bits of a high level and a low level or succeeding bits of a low level and a high level is measured, from a sort of the binary signal of the preceding bit in this period and said period, a sort of the binary signal of the succeeding bit in this period is discriminated.
Dependencies are inferred from the claim text.